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Cushion|Natural|GIA

1.21ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 5513610130

Certificate GIA 5513610130

Diamond specifications and retailer prices

From €1,520 EUR
$1,698 USD
As of November 1, 2026
Save €1,635 EUR (52%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,155 EUR at MOH London · As of November 1, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5513610130. Listed at 12 retailers as of November 1, 2026, with prices from €1,520 to €3,155, a €1,635 spread on the same certified stone. MOH London lists it at €3,155. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40°
Pavilion angle36.99°
OriginNatural
Grading LabGIA
CertificateGIA 5513610130
Dimensions6.31 × 5.80 × 3.99 mm
L/W Ratio1.09
Top View
6.31 mm5.80 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5513610130
Side View
Table 62.0%Crown 40°Girdle: STK-VTKPavilion 36.99°Culet: NoneDepth 68.8%

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 1
Current: €3,155 EUR|Low: €1,417 EUR|High: €3,278 EUR|Avg: €2,069 EUR|-2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 5€1,520 EUR
Retailer 9€1,522 EUR
Retailer 6€1,640 EUR
Retailer 2€1,757 EUR
Retailer 3€1,855 EUR
Retailer 8€1,918 EUR
Retailer 7€2,032 EUR
Retailer 10€2,032 EUR
Retailer 11€2,095 EUR
Retailer 4€2,460 EUR
MOH London€3,155 EUR

36 data points across 11 retailers

12 retailers€1,520 EUR to €3,155 EUR

A
Cheapest Retailer
-
€1,520 EUR
$1,698 USD
A
Retailer 2
-
€1,522 EUR
$1,700 USD
View
Final sale: no returns
B+
Retailer 3
-
€1,640 EUR
$1,832 USD
View
B+
Retailer 4
-
€1,641 EUR
A$2,821 AUD
View
B+
Retailer 5
-
€1,757 EUR
£1,545 GBP
View
B+
Retailer 6
-
€1,855 EUR
A$3,188 AUD
View
B+
Retailer 7
-
€1,918 EUR
$2,143 USD
View
B
Retailer 8
-
€2,032 EUR
$2,270 USD
View
B
Retailer 9
-
€2,032 EUR
$2,270 USD
View
B
Retailer 10
-
€2,095 EUR
$2,340 USD
View
B
Retailer 11
-
€2,460 EUR
View
Most Expensive
B
MOH London
E8E9572A0 · Nov 1
€3,155 EUR
£2,775 GBP
View
11 more retailers have this diamond
Prices start from €1,520 EURSave up to €1,635 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
€1,520 EUR