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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2225656240

Certificate GIA 2225656240

Diamond specifications and retailer prices

From €6,261 EUR
$7,022 USD
As of November 2, 2026
Save €5,505 EUR (47%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €11,766 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded H 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 2225656240. Listed at 24 retailers as of November 1, 2026, with prices from €6,261 to €11,766, a €5,505 spread on the same certified stone. MOH London lists it at €11,766. 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

1.51
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.57°
Pavilion angle40.44°
OriginNatural
Grading LabGIA
CertificateGIA 2225656240
Dimensions6.79 × 6.63 × 4.44 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.79 mm6.63 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2225656240
Side View
Table 68.0%Crown 35.57°Girdle: THK-VTKPavilion 40.44°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €11,766 EUR|Low: €6,153 EUR|High: €11,907 EUR|Avg: €8,073 EUR|-0.1%
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 3€6,261 EUR
Retailer 7€6,299 EUR
Retailer 9€6,610 EUR
Retailer 10€7,060 EUR
Retailer 11€7,060 EUR
Retailer 8€7,118 EUR
Retailer 4€7,880 EUR
Retailer 6€7,960 EUR
Retailer 2€9,222 EUR
Retailer 5€10,372 EUR
MOH London€11,766 EUR

44 data points across 11 retailers

24 retailers€6,261 EUR to €11,766 EUR

B+
Cheapest Retailer
-
€6,261 EUR
$7,022 USD
B+
Retailer 2
-
€6,299 EUR
$7,065 USD
View
B
Retailer 3
-
€6,566 EUR
$7,364 USD
View
B
Retailer 4
-
€6,590 EUR
A$11,372 AUD
View
B
Retailer 5
-
€6,610 EUR
$7,414 USD
View
B
Retailer 6
-
€6,795 EUR
$7,621 USD
View
B
Retailer 7
-
€7,030 EUR
$7,885 USD
View
B
Retailer 8
-
€7,060 EUR
$7,918 USD
View
Final sale: no returns
B
Retailer 9
-
€7,060 EUR
$7,919 USD
View
B
Retailer 10
-
€7,118 EUR
$7,984 USD
View
B
Retailer 11
-
€7,523 EUR
$8,438 USD
View
B
Retailer 12
-
€7,588 EUR
CA$11,820 CAD
View
B
Retailer 13
-
€7,753 EUR
A$13,378 AUD
View
B
Retailer 14
-
€7,771 EUR
$8,716 USD
View
B
Retailer 15
-
€7,880 EUR
£6,959 GBP
View
Retailer 16
-
€7,960 EUR
A$13,736 AUD
View
Price last confirmed 9 days ago
B
Retailer 17
-
€8,265 EUR
$9,270 USD
View
B
Retailer 18
-
€8,265 EUR
$9,270 USD
View
B
Retailer 19
-
€8,444 EUR
$9,471 USD
View
B
Retailer 20
-
€8,541 EUR
$9,580 USD
View
B
Retailer 21
-
€9,222 EUR
View
Retailer 22
-
€9,295 EUR
$10,425 USD
View
Price last confirmed 10 days ago
B
Retailer 23
-
€10,372 EUR
ZAR 187,930 ZAR
View
Most Expensive
B
MOH London
2FED25E2D · Nov 1
€11,766 EUR
£10,391 GBP
View
23 more retailers have this diamond
Prices start from €6,261 EURSave up to €5,505 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.

B+
1.51ct Cushion
€6,261 EUR