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Cushion|Natural|GIA

2.51ct H SI1 Cushion Natural Diamond

GD • H/SI1 • GIA 7558750950

Certificate GIA 7558750950

Diamond specifications and retailer prices

From $17,518 NZD
As of November 6, 2026
Save $13,994 NZD (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $31,512 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 2.51ct natural cushion diamond

This 2.51ct natural cushion sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7558750950. Listed at 17 retailers as of November 4, 2026, with prices from $17,518 to $31,512, a $13,994 spread on the same certified stone. MOH London lists it at $31,512. 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

2.51
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7558750950
Dimensions7.46 × 7.18 × 5.08 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Knot
Top View
7.46 mm7.18 mm2.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558750950
Side View
Table 66.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 70.7%

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 6
Current: $31,512 NZD|Low: $17,518 NZD|High: $33,368 NZD|Avg: $23,443 NZD|-5.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 10$17,518 NZD
Retailer 16$18,550 NZD
Retailer 5$19,518 NZD
Retailer 3$20,718 NZD
Retailer 4$21,286 NZD
Retailer 14$21,533 NZD
Retailer 7$21,762 NZD
Retailer 2$22,076 NZD
Retailer 6$22,170 NZD
Retailer 8$22,940 NZD
Retailer 11$23,149 NZD
Retailer 9$23,826 NZD
Retailer 12$24,308 NZD
Retailer 17$24,639 NZD
Retailer 13$24,780 NZD
Retailer 15$27,778 NZD
MOH London$31,512 NZD

15 data points across 17 retailers

17 retailers$17,518 NZD to $31,512 NZD

A
Cheapest Retailer
-
$17,518 NZD
A
Retailer 2
-
$18,550 NZD
View
A
Retailer 3
-
$19,518 NZD
View
Final sale: no returns
A
Retailer 4
-
$20,718 NZD
View
A
Retailer 5
-
$21,286 NZD
View
A
Retailer 6
-
$21,533 NZD
View
A
Retailer 7
-
$21,762 NZD
View
A
Retailer 8
-
$22,076 NZD
View
A
Retailer 9
-
$22,170 NZD
View
Retailer 10
-
$22,940 NZD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$23,149 NZD
View
Retailer 12
-
$23,826 NZD
View
Price last confirmed 14 days ago
A
Retailer 13
-
$24,308 NZD
View
A
Retailer 14
-
$24,639 NZD
View
A
Retailer 15
-
$24,780 NZD
View
B+
Retailer 16
-
$27,778 NZD
View
Most Expensive
B+
MOH London
816B50B8F · Nov 4
$31,512 NZD
£13,755 GBP
View
16 more retailers have this diamond
Prices start from $17,518 NZDSave up to $13,994 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
2.51ct Cushion
$17,518 NZD