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Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 6555086321

Certificate GIA 6555086321

Diamond specifications and retailer prices

From $3,253 USD
As of November 4, 2026
Save $2,834 USD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,087 USD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded G 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 6555086321. Listed at 15 retailers as of November 4, 2026, with prices from $3,253 to $6,087, a $2,834 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,087. 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
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555086321
Dimensions6.90 × 6.15 × 4.22 mm
L/W Ratio1.12
Top View
6.90 mm6.15 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555086321
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.7%

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 4
Current: $5,078 USD|Low: $3,253 USD|High: $6,439 USD|Avg: $4,309 USD|-7.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Wholesale Diamonds Direct
November 6, 2026
Retailer 8$3,253 USD
Retailer 10$3,307 USD
Retailer 6$3,332 USD
Retailer 13$3,417 USD
Retailer 9$3,476 USD
Retailer 5$3,552 USD
Retailer 7$3,759 USD
Retailer 11$4,080 USD
Retailer 2$4,147 USD
Retailer 3$4,203 USD
Retailer 1$5,078 USD
Retailer 12$5,486 USD
Retailer 4$5,831 USD
Wholesale Diamonds Direct$6,087 USD

29 data points across 14 retailers

15 retailers$3,253 USD to $6,087 USD

A
Cheapest Retailer
-
$3,253 USD
A
Retailer 2
-
$3,307 USD
View
A
Retailer 3
-
$3,332 USD
View
A
Retailer 4
-
$3,417 USD
View
A
Retailer 5
-
$3,476 USD
View
A
Retailer 6
-
$3,552 USD
View
A
Retailer 7
-
$3,759 USD
View
A
Retailer 8
-
$4,080 USD
View
A
Retailer 9
-
$4,147 USD
View
A
Retailer 10
-
$4,203 USD
View
A
Retailer 11
-
$4,238 USD
View
A
Retailer 12
-
$5,078 USD
View
A
Retailer 13
-
$5,486 USD
View
B+
Retailer 14
-
$5,831 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
444917161 · Nov 6
$6,087 USD
View
14 more retailers have this diamond
Prices start from $3,253 USDSave up to $2,834 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
$3,253 USD