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Cushion|Natural|GIA

1.51ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 2516339828

Certificate GIA 2516339828

Diamond specifications and retailer prices

From €3,733 EUR
$4,171 USD
As of October 31, 2026
Save €4,116 EUR (52%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €7,849 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 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 2516339828. Listed at 25 retailers as of October 31, 2026, with prices from €3,733 to €7,849, a €4,116 spread on the same certified stone. MOH London lists it at €7,849. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.63°
Pavilion angle36.01°
OriginNatural
Grading LabGIA
CertificateGIA 2516339828
Dimensions7.68 × 5.91 × 4.11 mm
L/W Ratio1.30
Top View
7.68 mm5.91 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2516339828
Side View
Table 64.0%Crown 38.63°Girdle: STK-VTKPavilion 36.01°Culet: NoneDepth 69.5%

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: Oct 31
Current: €7,849 EUR|Low: €3,569 EUR|High: €7,944 EUR|Avg: €5,043 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 10€3,733 EUR
Retailer 7€3,926 EUR
Retailer 11€4,202 EUR
Retailer 8€4,465 EUR
Retailer 9€4,697 EUR
Retailer 2€4,768 EUR
Retailer 6€4,936 EUR
Retailer 3€5,439 EUR
Retailer 5€5,578 EUR
Retailer 4€6,058 EUR
MOH London€7,849 EUR

42 data points across 11 retailers

25 retailers€3,733 EUR to €7,849 EUR

B+
Cheapest Retailer
-
€3,733 EUR
$4,171 USD
B+
Retailer 2
-
€3,850 EUR
$4,301 USD
View
B+
Retailer 3
-
€3,894 EUR
$4,350 USD
View
B+
Retailer 4
-
€3,926 EUR
$4,386 USD
View
Final sale: no returns
B+
Retailer 5
-
€3,941 EUR
$4,403 USD
View
B
Retailer 6
-
€4,065 EUR
A$6,986 AUD
View
B
Retailer 7
-
€4,186 EUR
CA$6,495 CAD
View
B
Retailer 8
-
€4,193 EUR
$4,685 USD
View
B
Retailer 9
-
€4,202 EUR
$4,695 USD
View
B+
Retailer 10
-
€4,424 EUR
$4,942 USD
View
B
Retailer 11
-
€4,465 EUR
$4,988 USD
View
B
Retailer 12
-
€4,542 EUR
$5,074 USD
View
B
Retailer 13
-
€4,697 EUR
$5,248 USD
View
B
Retailer 14
-
€4,704 EUR
$5,255 USD
View
B
Retailer 15
-
€4,768 EUR
£4,195 GBP
View
Retailer 16
-
€4,936 EUR
A$8,484 AUD
View
Price last confirmed 23 days ago
B
Retailer 17
-
€5,004 EUR
$5,590 USD
View
B
Retailer 18
-
€5,004 EUR
$5,590 USD
View
B
Retailer 19
-
€5,165 EUR
$5,770 USD
View
Retailer 20
-
€5,439 EUR
$6,076 USD
View
Price last confirmed 9 days ago
B
Retailer 21
-
€5,578 EUR
View
B
Retailer 22
-
€5,677 EUR
$6,342 USD
View
B
Retailer 23
-
€6,058 EUR
ZAR 109,332 ZAR
View
B
Retailer 24
-
€7,136 EUR
$7,973 USD
View
Most Expensive
B
MOH London
66A04432A · Nov 1
€7,849 EUR
£6,905 GBP
View
24 more retailers have this diamond
Prices start from €3,733 EURSave up to €4,116 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
€3,733 EUR