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Diamond ring mountings and diamond engagement semi-mounts
Diamond Bracelets | Earrings | Rings | Pendants | Necklaces

Don't miss our unique gemstone engagement ring styles.

Many exclusive
MJS original designs!
Unique Sapphire Engagement Rings Emerald Cut Pink Sapphire and Baguette Diamond Ring in 14kUnique Yellow Sapphire RingOrange Sapphire Diamond Engagement Rings
Emerald engagement ring. Emerald Promise Ring.Oval Burmese Ruby and Trillion Diamond Engagement RingPeridot engagement rings. Peridot promise rings.Amethyst engagement rings. Amethyst promise rings.

0.40 carat Diamond Engagement Semi-Mount in 18k(Optional Matching Band)Diamond Engagement Semi-Mount in 18k(Optional Matching Band)
0.40 ctw Diamond Engagement Semi-Mount in 18k
(Optional Matching Band)
Band In Stock
DR-1116
from $2749
Vintage Style 0.49 carat Diamond Semi Mount and Matching Wedding Band in 14k goldVintage Yellow Gold Diamond Engagement Ring and Wedding Band in 14k
0.49 ctw Diamond Engagement Ring and Wedding Band in 14k yellow gold
In Stock
DR-1221
$2769
0.33 carat Diamond Semi Mount Ring and Band Set in 14k white gold0.33 carat Diamond Semi Mount Ring and Wedding Band in 14k
0.33 ctw Diamond Semi Mount Ring and Band Set in 14k white gold
In Stock
DR-1167
$2969
Diamond Semi Mount and Matching Wedding Band in 14k gold with EngravingOld World 0.32 carat Diamond Engagement Ring and Wedding Band in 14k
Old World 0.32 ctw Diamond Engagement Ring Set in 14k yellow gold
In Stock
DR-1195
$3239
Diamond Semi Mount and Matching Band in 14k white gold with Heart Detail0.49 carat Diamond Engagement Ring and Wedding Band in 14k
0.49 ctw Diamond Engagement Ring and Wedding Band in 14k white gold
In Stock
DR-1132
$3389
Semi Mount: Antique styled Baguette and Round Diamond Mounting in 14k white gold for saleSemi Mount: Antique styled Baguette and Round Diamond Mounting in 14k white gold for sale
0.64 ctw Baguette and Round Diamond Mounting in 14k white gold
In Stock
DR-1235
$3479
0.72 carat Round and Baguette Diamond Engagement Ring in 14k white gold0.72 carat Round and Baguette Diamond Engagement Ring in 14k
0.72 ctw Round and Baguette Diamond Engagement Ring in 14k white gold
In Stock
DR-1187
$3609
Vintage Style 0.60 carat Diamond Semi Mount and Matching Wedding Band in 14k goldDiamond  Engagement Set in 14k white gold
0.60 ctw Diamond  Engagement Set in 14k white gold
Ships in 3-4 weeks
DR-1134
$3659
Special Order
Vintage Inspired 0.64 carat Diamond Mounting and Matching Wedding BandVintage Styled Engagement Semi Mount and Wedding Band in 14k
0.64 ctw Vintage Styled Engagement Set  in 14k or platinum
Ships in 3-4 weeks
DR-1177
from $3689
Special Order
1 carat Bead Set Round Diamond Engagement Mounting and Matching Band in 14k white goldThree Sided Diamond Engagement Semi Mount Ring and Wedding Band
1.08 ctw Bead Set Round Diamond Engagement Ring and Wedding Band in 14k white gold
In Stock
DR-1181
$4149
Antique Inspired 0.72 carat Diamond Semi Mount and Matching Wedding RingAntique Princess Cut Diamond Semi Mount Ring and Wedding Band in 14k gold or platinum
0.72 ctw Diamond Semi Mount Set in 14k, 18k or platinum
Ships in 3-4 weeks
DR-1169
from $3979
Special Order
Vintage Styled 0.54 carat Diamond Semi-Mount and Wedding Ring in Platinum0.54 carat Diamond Engagement Ring and Wedding Band in Platinum
0.45 ctw Diamond Engagement Set in Platinum
In Stock
DR-1097
$4299
Vintage Inspired 0.85 carat Diamond Semi Mount in 14k white gold with EngravingVintage Styled Engagement Ring in 14k white gold
0.85 ctw Vintage Styled Engagement Ring in 14k white gold
In Stock
DR-1178
$4109
Princess Cut Diamond Semi Mount and Band in 14k white gold0.88 carat Princess Cut and Round Diamond Semi Mount Set in 14k
0.88 ctw Princess Cut and Round Diamond Semi Mount Set in 14k white gold
In Stock
DR-1172
$4769
Baguette and Pave Round Diamond Semi Mount in 14k yellow goldDiamond Semi Mount in 14k yellow gold
1.03 ctw Diamond Semi Mount in 14k yellow gold
In Stock
DR-1165
$4659
Antique Inspired Ornate 0.58 carat Diamond Engagement Ring and Matching BandRose Gold Vintage Diamond Engagement Ring and Wedding Band in 14k
Vintage Beaded 0.58 ctw Diamond Engagement Set in 14k
Ships in 3-4 weeks
DR-1184
from $5089
Special Order
Customer Testimonial  more...

In the fall last year, I selected a semi mount and purchased a loose pink sapphire from you. I was worried the ring wouldn't be finished in time for my proposal, on my girlfriend's and my 2 year anniversary. It arrived earlier than promised and I must tell you how much my now fiance loves the ring. She loves the color and the fact that it is so unique. No one else will have a ring like hers. That makes me feel good too. I know I'll be back in a few months for a complimentary wedding band.

L.B., Miami, FL

Baguette and Marquise Diamond Semi-Mount Ring in 18k white goldDiamond Semi-Mount Ring in 18k white gold
0.90 ctw Diamond Semi-Mount Ring in 18k white gold
In Stock
DR-1198
$4879
Vintage Milgrain Bead Set Round Diamond Engagement Ring Set in PlatinumPlatinum Diamond Engagement Semi Mount and Wedding Band in Platinum
1.30 ctw Diamond Engagement Set in Platinum
In Stock
DR-1215
$6689
 Vintage Styled Diamond Engagement Ring and Matching BandVintage Styled Ornate 0.71 carat Diamond Engagement Ring Set in 14k
Vintage Styled Ornate 0.71 ctw Diamond Engagement Ring Set in 14k
Ships in 3-4 weeks
DR-1192
from $5909
Special Order
1.06 carat Baguette and Round Diamond Semi-Mounting in 18k white gold1.06 carat Baguette & Round Diamond Semi-Mount in 18k
1.06 ctw Baguette & Round Diamond Semi-Mount in 18k white gold
In Stock
DR-1124
$6299
Diamond Engagement Semi-Mount and Wedding Ring in 18k white goldBezel Set Diamond Engagement Semi-Mount and Wedding Band in 18k
0.41 ctw Diamond Engagement Semi-Mount Set in 18k white gold
In Stock
DR-1170
$6909
18k gold Large Round Diamond Semi Mount and Matching BandRound Diamond Semi Mount and Band in 18k yellow gold 
1.29 ctw Round Diamond Semi Mount and Band in 18k yellow gold
In Stock
DR-1166
$6949

See also our Antique-Style Gemstone Engagement Rings Unique Yellow Sapphire Diamond Engagement Ring Unique Pink Sapphire Engagement Ring Diamond and Sapphire Engagement Rings




what you can expect from us
Before the Purchase Icon

Before Your Purchase

  • 25+ years of trust and excellence
  • Transparent product details
  • Real photos
  • Designed and crafted in the USA
  • Friendly and responsive customer support
  • GIA Graduate Gemologist Available for consultation
With Your Purchase Icon

With Your Purchase

  • No Sales Tax
  • Complimentary elegant packaging
  • Upscale packaging for order over $1500
  • Discreet, secure and free shipping
  • Gemstones and diamonds tested for authenticity
  • Certificate of Authenticity prepared by our in-house Graduate Gemologist
  • Every piece quality-inspected
After the Purchase Icon

After Your Purchase

  • 30 day satisfaction guarantee
  • 90 day craftsmanship warranty
  • Friendly and responsive customer support
  • Services available for resizing and repairs

 

When will my order ship?

In stock orders, without ring sizing, received by 5pm EST (2pm PST) are shipped the Same or Next Business Day. If ring sizing is ordered, please allow 1-3 weeks weeks for shipment. 4-Day RUSH ring sizing is also available.

Also, note that nearly all of our rings can be sized by your local jeweler or we would be happy to size and return your ring for FREE within 30 days (in stock, unsized ring orders only).

For privacy, shipping boxes are plain and unmarked. See also: Shipping Transit Times.

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See our jewelry in all its glorious detail. We have video on almost all of our in-stock items.

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