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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 $3,699 AUD
$2,599 USD
As of October 31, 2026
Save $3,206 AUD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,905 AUD 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 $3,699 to $6,905, a $3,206 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,905. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $4,364 AUD|Low: $3,699 AUD|High: $7,444 AUD|Avg: $4,902 AUD|-9.1%
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 2, 2026
Retailer 7$3,699 AUD
Retailer 10$3,768 AUD
Retailer 8$4,023 AUD
Retailer 6$4,057 AUD
Retailer 1$4,364 AUD
Retailer 2$4,456 AUD
Retailer 3$4,553 AUD
Retailer 11$4,772 AUD
Retailer 9$4,798 AUD
Retailer 12$4,909 AUD
Retailer 4$5,027 AUD
Retailer 5$5,774 AUD
Wholesale Diamonds Direct$6,905 AUD

29 data points across 13 retailers

13 retailers$3,699 AUD to $6,905 AUD

A
Cheapest Retailer
-
$3,699 AUD
$2,599 USD
A
Retailer 2
-
$3,768 AUD
SGD 3,577 SGD
View
A
Retailer 3
-
$4,023 AUD
$2,826 USD
View
A
Retailer 4
-
$4,057 AUD
$2,850 USD
View
A
Retailer 5
-
$4,364 AUD
£2,414 GBP
View
A
Retailer 6
-
$4,456 AUD
SGD 4,230 SGD
View
A
Retailer 7
-
$4,553 AUD
$3,198 USD
View
A
Retailer 8
-
$4,772 AUD
$3,352 USD
View
A
Retailer 9
-
$4,798 AUD
$3,370 USD
View
A
Retailer 10
-
$4,909 AUD
$3,448 USD
View
Retailer 11
-
$5,027 AUD
€3,363 EUR
View
Price last confirmed 8 days ago
A
Retailer 12
-
$5,774 AUD
$4,056 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
378293703 · Oct 26
$6,905 AUD
$4,851 USD
View
12 more retailers have this diamond
Prices start from $3,699 AUDSave up to $3,206 AUD

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
$3,699 AUD