Cushion|Natural|GIA

1.51ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1236988663

Certificate GIA 1236988663

Diamond specifications and retailer prices

From $2,458 USD
HK$19,200 HKD
Save $3,296 USD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,753 USD at MOH London
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 18 retailers, with prices from $2,458 to $5,753 at MOH London, a $3,296 spread on the same certified stone. 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
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 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 29
Current: $5,753 USD|Low: $2,458 USD|High: $6,071 USD|Avg: $3,492 USD|-5.2%
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
October 1, 2026
Retailer 14$2,458 USD
Retailer 10$2,483 USD
Retailer 5$2,609 USD
Retailer 12$2,671 USD
Retailer 13$2,700 USD
Retailer 4$3,000 USD
Retailer 7$3,026 USD
Retailer 6$3,090 USD
Retailer 15$3,135 USD
Retailer 8$3,463 USD
Retailer 3$3,497 USD
Retailer 9$3,634 USD
Retailer 2$3,932 USD
Retailer 11$4,104 USD
Retailer 16$5,182 USD
MOH London$5,753 USD

43 data points across 16 retailers

18 retailers$2,458 USD to $5,753 USD

A
Cheapest Retailer
-
$2,458 USD
HK$19,200 HKD
A
Retailer 2
-
$2,483 USD
View
A
Retailer 3
-
$2,609 USD
View
A
Retailer 4
-
$2,671 USD
View
A
Retailer 5
-
$2,700 USD
View
A
Retailer 6
-
$3,000 USD
View
B+
Retailer 7
-
$3,026 USD
View
A
Retailer 8
-
$3,090 USD
View
A
Retailer 9
-
$3,142 USD
£2,474 GBP
View
B+
Retailer 10
-
$3,463 USD
A$5,328 AUD
View
B+
Retailer 11
-
$3,497 USD
View
B+
Retailer 12
-
$3,634 USD
A$5,591 AUD
View
B+
Retailer 13
-
$3,790 USD
View
Price last confirmed 44 days ago
B+
Retailer 14
-
$3,920 USD
View
Price last confirmed 47 days ago
B+
Retailer 15
-
$3,932 USD
€3,745 EUR
View
B+
Retailer 16
-
$4,104 USD
ZAR 66,305 ZAR
View
B
Retailer 17
-
$5,182 USD
View
Most Expensive
B
MOH London
F1C44731E · Sep 27
$5,753 USD
£4,530 GBP
View
17 more retailers have this diamond
Prices start from $2,458 USDSave up to $3,296 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.

A
1.51ct Cushion
$2,458 USD