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Cushion|Natural|GIA

1.51ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 6545580701

Certificate GIA 6545580701

Diamond specifications and retailer prices

From $7,903 NZD
HK$34,800 HKD
As of October 30, 2026
Save $9,109 NZD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $17,013 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545580701. Listed at 14 retailers as of October 28, 2026, with prices from $7,903 to $17,013, a $9,109 spread on the same certified stone. Queensmith lists it at $17,013. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545580701
Dimensions7.65 × 5.87 × 4.01 mm
L/W Ratio1.30
Top View
7.65 mm5.87 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545580701
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.4%

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: Oct 30
Current: $17,013 NZD|Low: $7,903 NZD|High: $17,137 NZD|Avg: $11,262 NZD|+2.0%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 9$7,903 NZD
Retailer 2$8,518 NZD
Retailer 8$9,090 NZD
Retailer 3$9,381 NZD
Retailer 10$9,709 NZD
Retailer 5$10,261 NZD
Retailer 11$10,415 NZD
Retailer 4$10,582 NZD
Retailer 12$10,796 NZD
Retailer 7$11,478 NZD
Retailer 6$15,582 NZD
Queensmith$17,013 NZD

32 data points across 12 retailers

14 retailers$7,903 NZD to $17,013 NZD

A
Cheapest Retailer
-
$7,903 NZD
HK$34,800 HKD
A
Retailer 2
-
$8,518 NZD
₹457,215 INR
View
A
Retailer 3
-
$9,090 NZD
SGD 6,923 SGD
View
A
Retailer 4
-
$9,381 NZD
SGD 7,145 SGD
View
A
Retailer 5
-
$9,709 NZD
$5,472 USD
View
Final sale: no returns
A
Retailer 6
-
$9,755 NZD
$5,498 USD
View
A
Retailer 7
-
$10,261 NZD
£4,554 GBP
View
B+
Retailer 8
-
$10,415 NZD
$5,870 USD
View
Retailer 9
-
$10,582 NZD
$5,964 USD
View
Price last confirmed 14 days ago
B+
Retailer 10
-
$10,796 NZD
$6,085 USD
View
B+
Retailer 11
-
$11,000 NZD
A$9,538 AUD
View
B+
Retailer 12
-
$11,478 NZD
€6,161 EUR
View
B+
Retailer 13
-
$15,582 NZD
£6,915 GBP
View
Most Expensive
B
Queensmith
6545580701 · Oct 28
$17,013 NZD
£7,550 GBP
View
13 more retailers have this diamond
Prices start from $7,903 NZDSave up to $9,109 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
$7,903 NZD