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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 $2,726 USD
HK$21,300 HKD
As of November 1, 2026
Save $3,342 USD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $6,068 USD 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 $2,726 to $6,068, a $3,342 spread on the same certified stone. MOH London lists it at $6,068. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,068 USD|Low: $2,598 USD|High: $6,236 USD|Avg: $3,605 USD|-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 14$2,726 USD
Retailer 12$2,761 USD
Retailer 6$2,927 USD
Retailer 16$2,965 USD
Retailer 2$3,080 USD
Retailer 3$3,132 USD
Retailer 17$3,180 USD
Retailer 5$3,261 USD
Retailer 7$3,306 USD
Retailer 4$3,370 USD
Retailer 8$3,536 USD
Retailer 11$3,551 USD
Retailer 18$3,728 USD
Retailer 10$3,858 USD
Retailer 15$4,248 USD
Retailer 13$4,460 USD
Retailer 9$5,465 USD
MOH London$6,068 USD

31 data points across 18 retailers

21 retailers$2,726 USD to $6,068 USD

A
Cheapest Retailer
-
$2,726 USD
HK$21,300 HKD
A
Retailer 2
-
$2,761 USD
View
A
Retailer 3
-
$2,927 USD
View
A
Retailer 4
-
$2,965 USD
View
A
Retailer 5
-
$3,080 USD
View
Final sale: no returns
A
Retailer 6
-
$3,132 USD
View
A
Retailer 7
-
$3,180 USD
View
B+
Retailer 8
-
$3,261 USD
A$5,016 AUD
View
A
Retailer 9
-
$3,306 USD
View
B+
Retailer 10
-
$3,370 USD
View
B+
Retailer 11
-
$3,536 USD
SGD 4,779 SGD
View
B+
Retailer 12
-
$3,551 USD
£2,796 GBP
View
Retailer 13
-
$3,587 USD
View
Price last confirmed 11 days ago
B+
Retailer 14
-
$3,728 USD
View
Retailer 15
-
$3,785 USD
View
Price last confirmed 39 days ago
B+
Retailer 16
-
$3,801 USD
A$5,848 AUD
View
Retailer 17
-
$3,858 USD
A$5,935 AUD
View
Price last confirmed 24 days ago
B+
Retailer 18
-
$4,248 USD
€4,046 EUR
View
B
Retailer 19
-
$4,460 USD
ZAR 72,053 ZAR
View
Retailer 20
-
$5,465 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
A452D5EB4 · Nov 1
$6,068 USD
£4,778 GBP
View
20 more retailers have this diamond
Prices start from $2,726 USDSave up to $3,342 USD

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
$2,726 USD