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Cushion|Natural|GIA

1.50ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 6542090181

Certificate GIA 6542090181

Diamond specifications and retailer prices

From €2,440 EUR
HK$21,300 HKD
As of November 1, 2026
Save €2,991 EUR (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €5,431 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct 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 6542090181. Listed at 21 retailers as of November 1, 2026, with prices from €2,440 to €5,431, a €2,991 spread on the same certified stone. MOH London lists it at €5,431. 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

1.50
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.4°
OriginNatural
Grading LabGIA
CertificateGIA 6542090181
Dimensions6.59 × 6.58 × 4.33 mm
L/W Ratio1.00
Top View
6.59 mm6.58 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542090181
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 38.4°Culet: NoneDepth 65.7%

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: €5,431 EUR|Low: €2,326 EUR|High: €5,582 EUR|Avg: €3,228 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
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 16€2,440 EUR
Retailer 14€2,471 EUR
Retailer 7€2,620 EUR
Retailer 17€2,654 EUR
Retailer 12€2,757 EUR
Retailer 4€2,803 EUR
Retailer 18€2,846 EUR
Retailer 6€2,919 EUR
Retailer 11€3,001 EUR
Retailer 5€3,016 EUR
Retailer 8€3,165 EUR
Retailer 13€3,178 EUR
Retailer 3€3,337 EUR
Retailer 10€3,453 EUR
Retailer 2€3,860 EUR
Retailer 15€3,992 EUR
Retailer 9€4,891 EUR
MOH London€5,431 EUR

30 data points across 18 retailers

21 retailers€2,440 EUR to €5,431 EUR

A
Cheapest Retailer
-
€2,440 EUR
HK$21,300 HKD
A
Retailer 2
-
€2,471 EUR
$2,761 USD
View
A
Retailer 3
-
€2,620 EUR
$2,927 USD
View
A
Retailer 4
-
€2,654 EUR
$2,965 USD
View
B+
Retailer 5
-
€2,757 EUR
$3,080 USD
View
Final sale: no returns
A
Retailer 6
-
€2,803 EUR
$3,132 USD
View
A
Retailer 7
-
€2,846 EUR
$3,180 USD
View
B+
Retailer 8
-
€2,919 EUR
A$5,016 AUD
View
B+
Retailer 9
-
€3,001 EUR
$3,352 USD
View
B+
Retailer 10
-
€3,016 EUR
$3,370 USD
View
B+
Retailer 11
-
€3,165 EUR
SGD 4,779 SGD
View
B+
Retailer 12
-
€3,178 EUR
£2,796 GBP
View
Retailer 13
-
€3,211 EUR
$3,587 USD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
€3,337 EUR
$3,728 USD
View
Retailer 15
-
€3,388 EUR
$3,785 USD
View
Price last confirmed 39 days ago
B+
Retailer 16
-
€3,402 EUR
A$5,848 AUD
View
Retailer 17
-
€3,453 EUR
A$5,935 AUD
View
Price last confirmed 24 days ago
B+
Retailer 18
-
€3,860 EUR
View
B
Retailer 19
-
€3,992 EUR
ZAR 72,053 ZAR
View
Retailer 20
-
€4,891 EUR
$5,465 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
A452D5EB4 · Nov 1
€5,431 EUR
£4,778 GBP
View
20 more retailers have this diamond
Prices start from €2,440 EURSave up to €2,991 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
1.50ct Cushion
€2,440 EUR