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Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2544827819

Certificate GIA 2544827819

Diamond specifications and retailer prices

From $17,789 NZD
$10,009 USD
As of November 1, 2026
Save $14,167 NZD (44%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $31,956 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 G 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 2544827819. Listed at 20 retailers as of October 30, 2026, with prices from $17,789 to $31,956, a $14,167 spread on the same certified stone. NZ Jewellers lists it at $31,956. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2544827819
Dimensions11.54 × 6.17 × 3.72 mm
L/W Ratio1.87
Top View
11.54 mm6.17 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2544827819
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.3%

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 1
Current: $21,603 NZD|Low: $20,553 NZD|High: $30,305 NZD|Avg: $23,698 NZD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3$20,725 NZD
Retailer 6$20,837 NZD
Retailer 7$21,091 NZD
Retailer 1$21,603 NZD
Retailer 2$23,077 NZD
Retailer 5$28,168 NZD
Retailer 4$29,944 NZD

36 data points across 7 retailers

20 retailers$17,789 NZD to $31,956 NZD

B+
Cheapest Retailer
-
$17,789 NZD
$10,009 USD
B+
Retailer 2
-
$17,894 NZD
$10,068 USD
View
B+
Retailer 3
-
$18,928 NZD
$10,650 USD
View
B+
Retailer 4
-
$19,174 NZD
$10,788 USD
View
B+
Retailer 5
-
$19,333 NZD
$10,878 USD
View
B+
Retailer 6
-
$20,725 NZD
£9,182 GBP
View
B+
Retailer 7
-
$20,771 NZD
$11,687 USD
View
Retailer 8
-
$20,837 NZD
A$18,037 AUD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$21,091 NZD
$11,867 USD
View
B+
Retailer 10
-
$21,253 NZD
$11,958 USD
View
B+
Retailer 11
-
$21,603 NZD
£9,571 GBP
View
B
Retailer 12
-
$22,376 NZD
$12,590 USD
View
B
Retailer 13
-
$22,376 NZD
$12,590 USD
View
B
Retailer 14
-
$23,077 NZD
€12,366 EUR
View
B
Retailer 15
-
$23,123 NZD
$13,010 USD
View
B
Retailer 16
-
$23,967 NZD
$13,485 USD
View
Retailer 17
-
$25,223 NZD
$14,192 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
$28,168 NZD
ZAR 256,042 ZAR
View
B
Retailer 19
-
$29,944 NZD
£13,266 GBP
View
Most Expensive
B
NZ Jewellers
cddb2d76-c4a3-4bb6-8b7a-65550c87b1c7 · Oct 30
$31,956 NZD
$17,980 USD
View
19 more retailers have this diamond
Prices start from $17,789 NZDSave up to $14,167 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 Marquise
$17,789 NZD