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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 $5,826 CAD
$4,171 USD
As of October 31, 2026
Save $6,423 CAD (52%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $12,250 CAD 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 $5,826 to $12,250, a $6,423 spread on the same certified stone. MOH London lists it at $12,250. 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: $12,250 CAD|Low: $5,569 CAD|High: $12,397 CAD|Avg: $7,865 CAD
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$5,826 CAD
Retailer 7$6,127 CAD
Retailer 11$6,558 CAD
Retailer 8$6,968 CAD
Retailer 9$7,331 CAD
Retailer 2$7,442 CAD
Retailer 6$7,703 CAD
Retailer 3$8,488 CAD
Retailer 5$8,705 CAD
Retailer 4$9,454 CAD
MOH London$12,250 CAD

43 data points across 11 retailers

25 retailers$5,826 CAD to $12,250 CAD

B+
Cheapest Retailer
-
$5,826 CAD
$4,171 USD
B+
Retailer 2
-
$6,008 CAD
$4,301 USD
View
B+
Retailer 3
-
$6,077 CAD
$4,350 USD
View
B+
Retailer 4
-
$6,127 CAD
$4,386 USD
View
Final sale: no returns
B+
Retailer 5
-
$6,151 CAD
$4,403 USD
View
B
Retailer 6
-
$6,343 CAD
A$6,986 AUD
View
B
Retailer 7
-
$6,532 CAD
View
B
Retailer 8
-
$6,544 CAD
$4,685 USD
View
B
Retailer 9
-
$6,558 CAD
$4,695 USD
View
B+
Retailer 10
-
$6,904 CAD
$4,942 USD
View
B
Retailer 11
-
$6,968 CAD
$4,988 USD
View
B
Retailer 12
-
$7,088 CAD
$5,074 USD
View
B
Retailer 13
-
$7,331 CAD
$5,248 USD
View
B
Retailer 14
-
$7,341 CAD
$5,255 USD
View
B
Retailer 15
-
$7,442 CAD
£4,195 GBP
View
Retailer 16
-
$7,703 CAD
A$8,484 AUD
View
Price last confirmed 22 days ago
B
Retailer 17
-
$7,809 CAD
$5,590 USD
View
B
Retailer 18
-
$7,809 CAD
$5,590 USD
View
B
Retailer 19
-
$8,060 CAD
$5,770 USD
View
Retailer 20
-
$8,488 CAD
$6,076 USD
View
Price last confirmed 9 days ago
B
Retailer 21
-
$8,705 CAD
€5,935 EUR
View
B
Retailer 22
-
$8,859 CAD
$6,342 USD
View
B
Retailer 23
-
$9,454 CAD
ZAR 109,332 ZAR
View
B
Retailer 24
-
$11,137 CAD
$7,973 USD
View
Most Expensive
B
MOH London
66A04432A · Nov 1
$12,250 CAD
£6,905 GBP
View
24 more retailers have this diamond
Prices start from $5,826 CADSave up to $6,423 CAD

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
$5,826 CAD