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Cushion|Natural|GIA

1.21ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 1558366202

Certificate GIA 1558366202

Diamond specifications and retailer prices

From €2,224 EUR
As of November 6, 2026
Save €2,695 EUR (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €4,918 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558366202. Listed at 17 retailers as of November 4, 2026, with prices from €2,224 to €4,918, a €2,695 spread on the same certified stone. MOH London lists it at €4,918. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1558366202
Dimensions7.16 × 5.34 × 3.62 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Indented Natural
Top View
7.16 mm5.34 mm1.21 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1558366202
Side View
Table 67.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €4,918 EUR|Low: €2,201 EUR|High: €5,177 EUR|Avg: €3,136 EUR|-5.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 12€2,224 EUR
Retailer 2€2,322 EUR
Retailer 5€2,658 EUR
Retailer 10€2,689 EUR
Retailer 3€2,721 EUR
Retailer 13€2,853 EUR
Retailer 14€2,949 EUR
Retailer 11€3,052 EUR
Retailer 8€3,092 EUR
Retailer 4€3,153 EUR
Retailer 6€3,269 EUR
Retailer 7€3,433 EUR
Retailer 9€3,600 EUR
MOH London€4,918 EUR

29 data points across 14 retailers

17 retailers€2,224 EUR to €4,918 EUR

A
Cheapest Retailer
-
€2,224 EUR
A
Retailer 2
-
€2,322 EUR
View
B+
Retailer 3
-
€2,658 EUR
View
B+
Retailer 4
-
€2,689 EUR
View
B+
Retailer 5
-
€2,721 EUR
View
Final sale: no returns
B+
Retailer 6
-
€2,830 EUR
View
B+
Retailer 7
-
€2,853 EUR
View
Retailer 8
-
€2,949 EUR
View
Price last confirmed 9 days ago
B+
Retailer 9
-
€3,014 EUR
View
B+
Retailer 10
-
€3,052 EUR
View
B+
Retailer 11
-
€3,092 EUR
View
B+
Retailer 12
-
€3,153 EUR
View
B+
Retailer 13
-
€3,269 EUR
View
Retailer 14
-
€3,279 EUR
View
Price last confirmed 34 days ago
B+
Retailer 15
-
€3,433 EUR
View
B+
Retailer 16
-
€3,600 EUR
View
Most Expensive
B
MOH London
ED05D376F · Nov 4
€4,918 EUR
£4,324 GBP
View
16 more retailers have this diamond
Prices start from €2,224 EURSave up to €2,695 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.21ct Cushion
€2,224 EUR