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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 5563268455

Certificate GIA 5563268455

Diamond specifications and retailer prices

From $2,599 USD
As of October 31, 2026
Save $2,252 USD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,851 USD at Wholesale Diamonds Direct · As of October 26, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5563268455. Listed at 13 retailers as of October 26, 2026, with prices from $2,599 to $4,851, a $2,252 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,851. 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
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5563268455
Dimensions7.33 × 5.87 × 4.07 mm
L/W Ratio1.25
Culet sizeNone
Top View
7.33 mm5.87 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5563268455
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.4%

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: Oct 31
Current: $4,056 USD|Low: $2,599 USD|High: $5,229 USD|Avg: $3,450 USD|-10.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 1, 2026
Retailer 7$2,599 USD
Retailer 10$2,647 USD
Retailer 8$2,826 USD
Retailer 6$2,850 USD
Retailer 5$3,040 USD
Retailer 2$3,130 USD
Retailer 3$3,198 USD
Retailer 11$3,352 USD
Retailer 9$3,370 USD
Retailer 12$3,448 USD
Retailer 4$3,531 USD
Retailer 1$4,056 USD
Wholesale Diamonds Direct$4,851 USD

29 data points across 13 retailers

13 retailers$2,599 USD to $4,851 USD

A
Cheapest Retailer
-
$2,599 USD
A
Retailer 2
-
$2,647 USD
SGD 3,577 SGD
View
A
Retailer 3
-
$2,826 USD
View
A
Retailer 4
-
$2,850 USD
View
A
Retailer 5
-
$3,040 USD
£2,394 GBP
View
A
Retailer 6
-
$3,130 USD
SGD 4,230 SGD
View
A
Retailer 7
-
$3,198 USD
View
A
Retailer 8
-
$3,352 USD
View
A
Retailer 9
-
$3,370 USD
View
A
Retailer 10
-
$3,448 USD
View
Retailer 11
-
$3,531 USD
€3,363 EUR
View
Price last confirmed 7 days ago
A
Retailer 12
-
$4,056 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
378293703 · Oct 26
$4,851 USD
View
12 more retailers have this diamond
Prices start from $2,599 USDSave up to $2,252 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
$2,599 USD