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Cushion|Natural|GIA

1.51ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 6205595976

Certificate GIA 6205595976

Diamond specifications and retailer prices

From $17,999 NZD
As of November 6, 2026
Save $13,843 NZD (43%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $31,842 NZD at MOH London · As of November 7, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6205595976. Listed at 24 retailers as of November 6, 2026, with prices from $17,999 to $31,842, a $13,843 spread on the same certified stone. MOH London lists it at $31,842. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6205595976
Dimensions7.17 × 6.84 × 4.49 mm
L/W Ratio1.05
Top View
7.17 mm6.84 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6205595976
Side View
Table 62.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 65.6%

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: $31,842 NZD|Low: $17,999 NZD|High: $32,399 NZD|Avg: $23,531 NZD|-1.6%
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
November 7, 2026
Retailer 5$17,999 NZD
Retailer 3$18,174 NZD
Retailer 4$20,498 NZD
Retailer 2$21,167 NZD
Retailer 9$21,261 NZD
Retailer 8$21,952 NZD
Retailer 13$22,293 NZD
Retailer 10$23,727 NZD
Retailer 11$24,634 NZD
Retailer 6$25,996 NZD
Retailer 7$27,744 NZD
Retailer 12$29,907 NZD
MOH London$31,842 NZD

46 data points across 13 retailers

24 retailers$17,999 NZD to $31,842 NZD

B+
Cheapest Retailer
-
$17,999 NZD
Retailer 2
-
$18,174 NZD
View
Price last confirmed 17 days ago
B
Retailer 3
-
$19,017 NZD
View
B
Retailer 4
-
$19,020 NZD
View
B
Retailer 5
-
$19,451 NZD
View
B
Retailer 6
-
$19,576 NZD
View
B
Retailer 7
-
$20,213 NZD
View
B
Retailer 8
-
$20,498 NZD
View
B
Retailer 9
-
$20,669 NZD
View
B
Retailer 10
-
$21,167 NZD
View
B
Retailer 11
-
$21,261 NZD
View
B
Retailer 12
-
$21,952 NZD
View
Retailer 13
-
$22,293 NZD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$22,684 NZD
View
B
Retailer 15
-
$23,714 NZD
View
B
Retailer 16
-
$23,727 NZD
View
B
Retailer 17
-
$23,848 NZD
View
B
Retailer 18
-
$23,848 NZD
View
B
Retailer 19
-
$24,634 NZD
View
B
Retailer 20
-
$24,641 NZD
View
B
Retailer 21
-
$25,996 NZD
View
B
Retailer 22
-
$27,744 NZD
View
B
Retailer 23
-
$29,907 NZD
View
Most Expensive
B
MOH London
E50A38A21 · Nov 7
$31,842 NZD
£13,899 GBP
View
23 more retailers have this diamond
Prices start from $17,999 NZDSave up to $13,843 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+
1.51ct Cushion
$17,999 NZD