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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6551533295

Certificate GIA 6551533295

Diamond specifications and retailer prices

From $6,279 NZD
HK$27,600 HKD
As of November 1, 2026
Save $9,002 NZD (59%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $15,281 NZD at Queensmith · As of October 28, 2026
View at Queensmith

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 6551533295. Listed at 15 retailers as of October 28, 2026, with prices from $6,279 to $15,281, a $9,002 spread on the same certified stone. Queensmith lists it at $15,281. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551533295
Dimensions7.61 × 5.86 × 4.02 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural, Natural
Top View
7.61 mm5.86 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551533295
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.6%

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: Nov 1
Current: $15,281 NZD|Low: $6,233 NZD|High: $15,371 NZD|Avg: $9,072 NZD|+2.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 10$6,279 NZD
Retailer 2$6,716 NZD
Retailer 5$7,397 NZD
Retailer 3$7,742 NZD
Retailer 12$7,990 NZD
Retailer 6$8,126 NZD
Retailer 8$8,341 NZD
Retailer 11$8,389 NZD
Retailer 4$8,656 NZD
Retailer 13$8,878 NZD
Retailer 7$9,491 NZD
Retailer 9$13,360 NZD
Queensmith$15,281 NZD

24 data points across 13 retailers

15 retailers$6,279 NZD to $15,281 NZD

A
Cheapest Retailer
-
$6,279 NZD
HK$27,600 HKD
A
Retailer 2
-
$6,716 NZD
₹359,882 INR
View
A
Retailer 3
-
$7,397 NZD
SGD 5,624 SGD
View
B+
Retailer 4
-
$7,690 NZD
$4,327 USD
View
A
Retailer 5
-
$7,742 NZD
$4,356 USD
View
Final sale: no returns
B+
Retailer 6
-
$7,990 NZD
SGD 6,075 SGD
View
A
Retailer 7
-
$8,126 NZD
£3,600 GBP
View
B+
Retailer 8
-
$8,341 NZD
£3,695 GBP
View
B+
Retailer 9
-
$8,389 NZD
$4,720 USD
View
B+
Retailer 10
-
$8,616 NZD
A$7,458 AUD
View
B+
Retailer 11
-
$8,656 NZD
$4,870 USD
View
B+
Retailer 12
-
$8,878 NZD
$4,995 USD
View
B+
Retailer 13
-
$9,491 NZD
€5,086 EUR
View
B
Retailer 14
-
$13,360 NZD
£5,919 GBP
View
Most Expensive
B
Queensmith
6551533295 · Oct 28
$15,281 NZD
£6,770 GBP
View
14 more retailers have this diamond
Prices start from $6,279 NZDSave up to $9,002 NZD

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
$6,279 NZD