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Cushion|Natural|GIA

1.51ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 7548880540

Certificate GIA 7548880540

Diamond specifications and retailer prices

From $3,636 USD
As of November 6, 2026
Save $3,256 USD (47%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,892 USD at MOH London · As of November 4, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7548880540. Listed at 6 retailers as of November 4, 2026, with prices from $3,636 to $6,892, a $3,256 spread on the same certified stone. MOH London lists it at $6,892. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.59°
OriginNatural
Grading LabGIA
CertificateGIA 7548880540
Dimensions7.63 × 5.89 × 4.08 mm
L/W Ratio1.30
Key to symbols
Crystal, Cloud, Needle
Top View
7.63 mm5.89 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7548880540
Side View
Table 64.0%CrownGirdle: MED-VTKPavilion 35.59°Culet: NoneDepth 69.3%

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: Nov 6
Current: $6,892 USD|Low: $3,636 USD|High: $6,994 USD|Avg: $4,605 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$3,636 USD
Retailer 4$3,799 USD
Retailer 2$4,078 USD
Retailer 6$4,280 USD
Retailer 3$4,394 USD
Retailer 5$4,917 USD
MOH London$6,892 USD

30 data points across 7 retailers

6 retailers$3,636 USD to $6,892 USD

B+
Cheapest Retailer
-
$3,636 USD
B+
Retailer 2
-
$3,799 USD
View
B+
Retailer 3
-
$4,078 USD
View
B
Retailer 4
-
$4,280 USD
View
B
Retailer 5
-
$4,394 USD
View
Most Expensive
B
MOH London
CF5B4A5F7 · Nov 4
$6,892 USD
£5,427 GBP
View
5 more retailers have this diamond
Prices start from $3,636 USDSave up to $3,256 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.

B+
1.51ct Cushion
$3,636 USD