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Cushion|Natural|GIA

1.51ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1236988663

Certificate GIA 1236988663

Diamond specifications and retailer prices

From €2,009 EUR
HK$17,600 HKD
As of November 2, 2026
Save €2,448 EUR (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €4,457 EUR at MOH London · As of November 2, 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 1236988663. Listed at 20 retailers as of November 2, 2026, with prices from €2,009 to €4,457, a €2,448 spread on the same certified stone. MOH London lists it at €4,457. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1236988663
Dimensions7.23 × 5.78 × 3.97 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
7.23 mm5.78 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236988663
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.6%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: €4,457 EUR|Low: €1,974 EUR|High: €4,844 EUR|Avg: €2,812 EUR|-8.0%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 13€2,009 EUR
Retailer 4€2,021 EUR
Retailer 3€2,188 EUR
Retailer 17€2,227 EUR
Retailer 7€2,230 EUR
Retailer 6€2,434 EUR
Retailer 10€2,435 EUR
Retailer 2€2,453 EUR
Retailer 16€2,471 EUR
Retailer 11€2,514 EUR
Retailer 14€2,564 EUR
Retailer 18€2,599 EUR
Retailer 8€2,711 EUR
Retailer 12€2,737 EUR
Retailer 15€3,118 EUR
Retailer 5€3,367 EUR
Retailer 9€4,336 EUR
MOH London€4,457 EUR

20 data points across 18 retailers

20 retailers€2,009 EUR to €4,457 EUR

A
Cheapest Retailer
-
€2,009 EUR
HK$17,600 HKD
A
Retailer 2
-
€2,021 EUR
$2,267 USD
View
A
Retailer 3
-
€2,188 EUR
$2,454 USD
View
A
Retailer 4
-
€2,227 EUR
$2,498 USD
View
Final sale: no returns
A
Retailer 5
-
€2,230 EUR
$2,502 USD
View
A
Retailer 6
-
€2,434 EUR
$2,730 USD
View
A
Retailer 7
-
€2,435 EUR
$2,731 USD
View
A
Retailer 8
-
€2,453 EUR
A$4,233 AUD
View
A
Retailer 9
-
€2,471 EUR
$2,772 USD
View
A
Retailer 10
-
€2,514 EUR
$2,820 USD
View
A
Retailer 11
-
€2,564 EUR
£2,264 GBP
View
A
Retailer 12
-
€2,599 EUR
£2,295 GBP
View
Retailer 13
-
€2,711 EUR
$3,041 USD
View
Price last confirmed 13 days ago
A
Retailer 14
-
€2,737 EUR
$3,070 USD
View
B+
Retailer 15
-
€3,088 EUR
A$5,328 AUD
View
B+
Retailer 16
-
€3,118 EUR
View
Retailer 17
-
€3,137 EUR
A$5,413 AUD
View
Price last confirmed 25 days ago
B+
Retailer 18
-
€3,367 EUR
ZAR 61,001 ZAR
View
Retailer 19
-
€4,336 EUR
$4,863 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
F1C44731E · Nov 2
€4,457 EUR
£3,936 GBP
View
19 more retailers have this diamond
Prices start from €2,009 EURSave up to €2,448 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
1.51ct Cushion
€2,009 EUR