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Cushion|Natural|GIA

1.02ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 5231993457

Certificate GIA 5231993457

Diamond specifications and retailer prices

From €1,412 EUR
$1,577 USD
As of November 1, 2026
Save €1,956 EUR (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €3,367 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.02ct natural cushion diamond

This 1.02ct 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 5231993457. Listed at 14 retailers as of November 1, 2026, with prices from €1,412 to €3,367, a €1,956 spread on the same certified stone. MOH London lists it at €3,367. 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

1.02
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.39°
OriginNatural
Grading LabGIA
CertificateGIA 5231993457
Dimensions5.90 × 5.87 × 3.94 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.90 mm5.87 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231993457
Side View
Table 61.0%Crown 33.7°Girdle: THK-ETKPavilion 40.39°Culet: NoneDepth 67.0%

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: €3,367 EUR|Low: €1,412 EUR|High: €4,013 EUR|Avg: €2,311 EUR|-16.1%
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 2, 2026
Retailer 8€1,412 EUR
Retailer 9€1,467 EUR
Retailer 11€1,576 EUR
Retailer 12€1,608 EUR
Retailer 3€1,670 EUR
Retailer 5€1,795 EUR
Retailer 4€1,898 EUR
Retailer 13€1,898 EUR
Retailer 14€1,960 EUR
Retailer 7€2,109 EUR
Retailer 10€2,346 EUR
Retailer 2€2,456 EUR
Retailer 6€2,520 EUR
MOH London€3,367 EUR

42 data points across 14 retailers

14 retailers€1,412 EUR to €3,367 EUR

A
Cheapest Retailer
-
€1,412 EUR
$1,577 USD
A
Retailer 2
-
€1,467 EUR
HK$12,800 HKD
View
A
Retailer 3
-
€1,576 EUR
$1,761 USD
View
A
Retailer 4
-
€1,608 EUR
$1,796 USD
View
Final sale: no returns
A
Retailer 5
-
€1,670 EUR
$1,866 USD
View
A
Retailer 6
-
€1,795 EUR
$2,005 USD
View
A
Retailer 7
-
€1,898 EUR
$2,120 USD
View
A
Retailer 8
-
€1,898 EUR
$2,120 USD
View
A
Retailer 9
-
€1,960 EUR
$2,190 USD
View
A
Retailer 10
-
€2,109 EUR
£1,855 GBP
View
B+
Retailer 11
-
€2,346 EUR
$2,621 USD
View
B+
Retailer 12
-
€2,456 EUR
View
Retailer 13
-
€2,520 EUR
A$4,331 AUD
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
650C56878 · Nov 1
€3,367 EUR
£2,962 GBP
View
13 more retailers have this diamond
Prices start from €1,412 EURSave up to €1,956 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
1.02ct Cushion
€1,412 EUR