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Cushion|Natural|GIA

1.51ct G SI2 Cushion Natural Diamond

GD • G/SI2 • GIA 2556496790

Certificate GIA 2556496790

Diamond specifications and retailer prices

From $6,791 NZD
HK$29,900 HKD
As of November 1, 2026
Save $9,028 NZD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $15,819 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556496790. Listed at 15 retailers as of October 28, 2026, with prices from $6,791 to $15,819, a $9,028 spread on the same certified stone. Queensmith lists it at $15,819. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556496790
Dimensions7.64 × 5.69 × 3.85 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle
Top View
7.64 mm5.69 mm1.51 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556496790
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.6%

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: $15,819 NZD|Low: $6,791 NZD|High: $15,886 NZD|Avg: $10,088 NZD|+2.0%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7$6,791 NZD
Retailer 5$7,257 NZD
Retailer 9$7,951 NZD
Retailer 10$8,369 NZD
Retailer 2$8,785 NZD
Retailer 4$9,053 NZD
Retailer 8$9,068 NZD
Retailer 3$10,260 NZD
Retailer 6$14,444 NZD
Queensmith$15,819 NZD

26 data points across 10 retailers

15 retailers$6,791 NZD to $15,819 NZD

A
Cheapest Retailer
-
$6,791 NZD
HK$29,900 HKD
A
Retailer 2
-
$7,257 NZD
₹389,532 INR
View
A
Retailer 3
-
$7,951 NZD
SGD 6,056 SGD
View
B+
Retailer 4
-
$8,266 NZD
$4,659 USD
View
B+
Retailer 5
-
$8,369 NZD
$4,717 USD
View
Final sale: no returns
Retailer 6
-
$8,645 NZD
SGD 6,584 SGD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$8,785 NZD
£3,899 GBP
View
B+
Retailer 8
-
$9,053 NZD
£4,018 GBP
View
B+
Retailer 9
-
$9,068 NZD
$5,111 USD
View
B+
Retailer 10
-
$9,224 NZD
A$7,998 AUD
View
B+
Retailer 11
-
$9,339 NZD
$5,263 USD
View
B+
Retailer 12
-
$9,563 NZD
$5,390 USD
View
B+
Retailer 13
-
$10,260 NZD
€5,507 EUR
View
B
Retailer 14
-
$14,444 NZD
£6,410 GBP
View
Most Expensive
B
Queensmith
2556496790 · Oct 28
$15,819 NZD
£7,020 GBP
View
14 more retailers have this diamond
Prices start from $6,791 NZDSave up to $9,028 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
$6,791 NZD