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Marquise|Natural|GIA

1.51ct G SI2 Marquise Natural Diamond

ID • G/SI2 • GIA 5543750984

Certificate GIA 5543750984

Diamond specifications and retailer prices

From $12,816 NZD
$7,211 USD
As of October 28, 2026
Save $15,727 NZD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $28,543 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5543750984. Listed at 15 retailers as of October 28, 2026, with prices from $12,816 to $28,543, a $15,727 spread on the same certified stone. NZ Jewellers lists it at $28,543. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle38.2°
Pavilion angle40.48°
OriginNatural
Grading LabGIA
CertificateGIA 5543750984
Dimensions11.32 × 5.99 × 3.81 mm
L/W Ratio1.89
Top View
11.32 mm5.99 mm1.51 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5543750984
Side View
Table 58.0%Crown 38.2°Girdle: ThickPavilion 40.48°Culet: NoneDepth 63.6%

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: Oct 28
Current: $28,543 NZD|Low: $12,816 NZD|High: $28,543 NZD|Avg: $17,285 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 5$12,816 NZD
Retailer 4$13,972 NZD
Retailer 13$14,162 NZD
Retailer 15$14,849 NZD
Retailer 10$15,959 NZD
Retailer 8$15,978 NZD
Retailer 12$15,990 NZD
Retailer 16$16,083 NZD
Retailer 17$16,563 NZD
Retailer 7$17,080 NZD
Retailer 14$17,080 NZD
Retailer 3$17,464 NZD
Retailer 6$17,649 NZD
Retailer 9$17,776 NZD
Retailer 2$17,885 NZD
Retailer 11$23,784 NZD
NZ Jewellers$28,543 NZD

20 data points across 17 retailers

15 retailers$12,816 NZD to $28,543 NZD

A
Cheapest Retailer
-
$12,816 NZD
$7,211 USD
A
Retailer 2
-
$13,972 NZD
$7,861 USD
View
A
Retailer 3
-
$14,162 NZD
CA$11,067 CAD
View
B+
Retailer 4
-
$14,849 NZD
$8,355 USD
View
B+
Retailer 5
-
$15,959 NZD
£7,070 GBP
View
B+
Retailer 6
-
$15,990 NZD
$8,997 USD
View
B+
Retailer 7
-
$16,083 NZD
$9,049 USD
View
B+
Retailer 8
-
$16,563 NZD
$9,319 USD
View
B+
Retailer 9
-
$17,080 NZD
$9,610 USD
View
B+
Retailer 10
-
$17,080 NZD
$9,610 USD
View
B+
Retailer 11
-
$17,464 NZD
$9,826 USD
View
B+
Retailer 12
-
$17,649 NZD
$9,930 USD
View
B+
Retailer 13
-
$17,885 NZD
€9,584 EUR
View
B
Retailer 14
-
$23,784 NZD
£10,537 GBP
View
Most Expensive
B
NZ Jewellers
c063fcbe-496c-47bf-aed7-fbff7226c26f · Oct 30
$28,543 NZD
$16,060 USD
View
14 more retailers have this diamond
Prices start from $12,816 NZDSave up to $15,727 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
$12,816 NZD