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Marquise|Natural|GIA

1.51ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 3555246295

Certificate GIA 3555246295

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)
19 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555246295. Listed at 19 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. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.76°
Pavilion angle37.56°
OriginNatural
Grading LabGIA
CertificateGIA 3555246295
Dimensions11.23 × 6.00 × 3.59 mm
L/W Ratio1.87
Top View
11.23 mm6.00 mm1.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555246295
Side View
Table 60.0%Crown 40.76°Girdle: STK-VTKPavilion 37.56°Culet: NoneDepth 59.8%

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: $31,956 NZD|Low: $15,978 NZD|High: $31,956 NZD|Avg: $22,946 NZD
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
November 2, 2026
Retailer 3$17,789 NZD
Retailer 10$19,174 NZD
Retailer 13$19,174 NZD
Retailer 6$20,725 NZD
Retailer 12$20,771 NZD
Retailer 9$20,837 NZD
Retailer 11$21,091 NZD
Retailer 5$22,376 NZD
Retailer 2$23,077 NZD
Retailer 4$23,967 NZD
Retailer 8$28,168 NZD
Retailer 7$29,944 NZD
NZ Jewellers$31,956 NZD

44 data points across 13 retailers

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

B+
Cheapest Retailer
-
$17,789 NZD
$10,009 USD
B+
Retailer 2
-
$18,928 NZD
$10,650 USD
View
B+
Retailer 3
-
$19,174 NZD
$10,788 USD
View
B
Retailer 4
-
$19,174 NZD
$10,788 USD
View
Final sale: no returns
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 10 days ago
B
Retailer 9
-
$21,091 NZD
$11,867 USD
View
B
Retailer 10
-
$22,376 NZD
$12,590 USD
View
B
Retailer 11
-
$22,376 NZD
$12,590 USD
View
B
Retailer 12
-
$22,836 NZD
$12,849 USD
View
B
Retailer 13
-
$23,077 NZD
€12,366 EUR
View
B
Retailer 14
-
$23,123 NZD
$13,010 USD
View
B
Retailer 15
-
$23,967 NZD
$13,485 USD
View
Retailer 16
-
$25,223 NZD
$14,192 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$28,168 NZD
ZAR 256,042 ZAR
View
B
Retailer 18
-
$29,944 NZD
£13,266 GBP
View
Most Expensive
B
NZ Jewellers
d9c19b02-f416-4506-8b76-2211e60f9434 · Oct 30
$31,956 NZD
$17,980 USD
View
18 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