Cushion|Natural|GIA

1.51ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 2466369960

Certificate GIA 2466369960

Diamond specifications and retailer prices

From $2,404 USD
As of November 4, 2026
Save $2,839 USD (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,243 USD 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2466369960. Listed at 16 retailers as of November 2, 2026, with prices from $2,404 to $5,243, a $2,839 spread on the same certified stone. MOH London lists it at $5,243. 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
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle29.7°
OriginNatural
Grading LabGIA
CertificateGIA 2466369960
Dimensions7.13 × 5.83 × 4.01 mm
L/W Ratio1.22
Top View
7.13 mm5.83 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2466369960
Side View
Table 61.0%Crown 37.5°Girdle: MED-VTKPavilion 29.7°Culet: NoneDepth 68.8%

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 4
Current: $5,243 USD|Low: $2,404 USD|High: $5,306 USD|Avg: $3,210 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$2,404 USD
Retailer 8$2,514 USD
Retailer 5$2,575 USD
Retailer 9$2,668 USD
Retailer 6$2,840 USD
Retailer 7$3,071 USD
Retailer 3$3,224 USD
Retailer 2$3,649 USD
Retailer 4$3,826 USD
MOH London$5,243 USD

42 data points across 10 retailers

16 retailers$2,404 USD to $5,243 USD

A
Cheapest Retailer
-
$2,404 USD
A
Retailer 2
-
$2,512 USD
View
A
Retailer 3
-
$2,514 USD
View
A
Retailer 4
-
$2,544 USD
View
A
Retailer 5
-
$2,570 USD
View
A
Retailer 6
-
$2,575 USD
View
A
Retailer 7
-
$2,668 USD
View
A
Retailer 8
-
$2,785 USD
View
Retailer 9
-
$2,840 USD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$3,071 USD
View
A
Retailer 11
-
$3,224 USD
View
Retailer 12
-
$3,639 USD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$3,649 USD
View
B+
Retailer 14
-
$3,826 USD
View
B
Retailer 15
-
$4,521 USD
View
Most Expensive
B
MOH London
DFC268F43 · Nov 2
$5,243 USD
£4,128 GBP
View
15 more retailers have this diamond
Prices start from $2,404 USDSave up to $2,839 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
1.51ct Cushion
$2,404 USD