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Cushion|Natural|GIA

2.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 5543731918

Certificate GIA 5543731918

Diamond specifications and retailer prices

From $38,059 NZD
As of November 6, 2026
Save $30,475 NZD (44%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $68,534 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5543731918. Listed at 19 retailers as of November 4, 2026, with prices from $38,059 to $68,534, a $30,475 spread on the same certified stone. MOH London lists it at $68,534. 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543731918
Dimensions9.21 × 7.34 × 5.02 mm
L/W Ratio1.25
Top View
9.21 mm7.34 mm2.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543731918
Side View
Table 70.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $68,534 NZD|Low: $40,691 NZD|High: $69,546 NZD|Avg: $48,962 NZD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$40,929 NZD
Retailer 6$42,852 NZD
Retailer 8$44,001 NZD
Retailer 4$44,286 NZD
Retailer 7$45,054 NZD
Retailer 9$46,396 NZD
Retailer 2$52,564 NZD
Retailer 3$60,422 NZD
MOH London$68,534 NZD

40 data points across 9 retailers

19 retailers$38,059 NZD to $68,534 NZD

B+
Cheapest Retailer
-
$38,059 NZD
B+
Retailer 2
-
$40,449 NZD
View
B+
Retailer 3
-
$40,793 NZD
View
Retailer 4
-
$40,929 NZD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$41,124 NZD
View
B
Retailer 6
-
$42,852 NZD
View
Final sale: no returns
Retailer 7
-
$44,001 NZD
View
Price last confirmed 8 days ago
Retailer 8
-
$44,017 NZD
View
Price last confirmed 25 days ago
B
Retailer 9
-
$44,286 NZD
View
B+
Retailer 10
-
$44,996 NZD
View
Retailer 11
-
$45,054 NZD
View
Price last confirmed 33 days ago
B
Retailer 12
-
$46,396 NZD
View
B
Retailer 13
-
$46,396 NZD
View
B
Retailer 14
-
$47,028 NZD
View
B
Retailer 15
-
$47,930 NZD
View
B
Retailer 16
-
$48,211 NZD
View
B
Retailer 17
-
$52,564 NZD
View
B
Retailer 18
-
$60,422 NZD
View
Most Expensive
B
MOH London
E54837E51 · Nov 4
$68,534 NZD
£29,915 GBP
View
18 more retailers have this diamond
Prices start from $38,059 NZDSave up to $30,475 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.

B+
2.51ct Cushion
$38,059 NZD