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Marquise|Natural|GIA

1.51ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2564234109

Certificate GIA 2564234109

Diamond specifications and retailer prices

From $17,101 NZD
HK$75,300 HKD
As of November 1, 2026
Save $15,406 NZD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $32,507 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 2564234109. Listed at 11 retailers as of October 30, 2026, with prices from $17,101 to $32,507, a $15,406 spread on the same certified stone. NZ Jewellers lists it at $32,507. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Pavilion angle41.04°
OriginNatural
Grading LabGIA
CertificateGIA 2564234109
Dimensions12.15 × 5.72 × 3.73 mm
L/W Ratio2.12
Key to symbols
Twinning Wisp, Crystal, Feather, Natural
Top View
12.15 mm5.72 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2564234109
Side View
Table 55.0%CrownGirdle: THK-VTKPavilion 41.04°Culet: NoneDepth 65.3%

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: $32,507 NZD|Low: $17,101 NZD|High: $32,803 NZD|Avg: $23,848 NZD|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 11$17,101 NZD
Retailer 8$18,832 NZD
Retailer 9$20,300 NZD
Retailer 6$21,822 NZD
Retailer 3$23,172 NZD
Retailer 7$23,323 NZD
Retailer 10$24,003 NZD
Retailer 2$24,165 NZD
Retailer 4$29,622 NZD
Retailer 5$30,461 NZD
NZ Jewellers$32,507 NZD

13 data points across 11 retailers

11 retailers$17,101 NZD to $32,507 NZD

A
Cheapest Retailer
-
$17,101 NZD
HK$75,300 HKD
B+
Retailer 2
-
$18,832 NZD
€10,108 EUR
View
B+
Retailer 3
-
$20,300 NZD
$11,441 USD
View
B+
Retailer 4
-
$21,822 NZD
£9,684 GBP
View
B
Retailer 5
-
$23,172 NZD
$13,060 USD
View
B
Retailer 6
-
$23,323 NZD
$13,145 USD
View
B+
Retailer 7
-
$24,003 NZD
$13,528 USD
View
B+
Retailer 8
-
$24,165 NZD
€12,971 EUR
View
B
Retailer 9
-
$29,622 NZD
$16,695 USD
View
B
Retailer 10
-
$30,461 NZD
£13,518 GBP
View
Most Expensive
B
NZ Jewellers
221050fd-396e-4ec7-8e7b-c1425e163983 · Oct 30
$32,507 NZD
$18,321 USD
View
10 more retailers have this diamond
Prices start from $17,101 NZDSave up to $15,406 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
$17,101 NZD