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Marquise|Natural|GIA

1.51ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2564024266

Certificate GIA 2564024266

Diamond specifications and retailer prices

From $16,590 NZD
$9,350 USD
As of November 1, 2026
Save $11,155 NZD (40%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $27,745 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise 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 2564024266. Listed at 14 retailers as of October 30, 2026, with prices from $16,590 to $27,745, a $11,155 spread on the same certified stone. NZ Jewellers lists it at $27,745. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564024266
Dimensions11.17 × 6.01 × 3.76 mm
L/W Ratio1.86
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Indented Natural, Needle
Top View
11.17 mm6.01 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564024266
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.6%

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: $27,745 NZD|Low: $16,590 NZD|High: $28,582 NZD|Avg: $20,332 NZD|-2.9%
NZ Jewellers
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
November 2, 2026
Retailer 11$16,590 NZD
Retailer 8$16,792 NZD
Retailer 6$17,292 NZD
Retailer 7$17,792 NZD
Retailer 2$18,096 NZD
Retailer 3$18,160 NZD
Retailer 9$18,344 NZD
Retailer 4$18,375 NZD
Retailer 5$18,591 NZD
Retailer 10$19,606 NZD
Retailer 14$20,213 NZD
Retailer 13$22,968 NZD
Retailer 12$26,137 NZD
NZ Jewellers$27,745 NZD

33 data points across 14 retailers

14 retailers$16,590 NZD to $27,745 NZD

A
Cheapest Retailer
-
$16,590 NZD
$9,350 USD
A
Retailer 2
-
$16,792 NZD
$9,464 USD
View
Retailer 3
-
$17,292 NZD
SGD 13,170 SGD
View
Price last confirmed 21 days ago
A
Retailer 4
-
$17,792 NZD
£7,896 GBP
View
B+
Retailer 5
-
$18,096 NZD
$10,199 USD
View
Final sale: no returns
A
Retailer 6
-
$18,160 NZD
$10,235 USD
View
A
Retailer 7
-
$18,344 NZD
£8,141 GBP
View
A
Retailer 8
-
$18,375 NZD
$10,356 USD
View
Retailer 9
-
$18,591 NZD
A$16,120 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$19,606 NZD
$11,050 USD
View
B+
Retailer 11
-
$20,213 NZD
$11,392 USD
View
B+
Retailer 12
-
$22,968 NZD
$12,945 USD
View
B+
Retailer 13
-
$26,137 NZD
£11,599 GBP
View
Most Expensive
B
NZ Jewellers
8216fa2d-64ce-4c00-9af0-9c4df310cdbc · Oct 30
$27,745 NZD
$15,637 USD
View
13 more retailers have this diamond
Prices start from $16,590 NZDSave up to $11,155 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 Marquise
$16,590 NZD