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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 2556189473

Certificate GIA 2556189473

Diamond specifications and retailer prices

From $11,324 NZD
SGD 8,610 SGD
As of November 1, 2026
Save $3,758 NZD (25%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $15,082 NZD at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556189473. Listed at 9 retailers as of November 1, 2026, with prices from $11,324 to $15,082, a $3,758 spread on the same certified stone. The Diamond Guys lists it at $15,082. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle38.25°
OriginNatural
Grading LabGIA
CertificateGIA 2556189473
Dimensions11.31 × 5.98 × 3.69 mm
L/W Ratio1.89
Top View
11.31 mm5.98 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556189473
Side View
Table 59.0%Crown 39.8°Girdle: STK-THKPavilion 38.25°Culet: NoneDepth 61.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $12,495 NZD|Low: $11,324 NZD|High: $15,745 NZD|Avg: $13,236 NZD|-8.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4$11,324 NZD
Retailer 3$11,640 NZD
Retailer 5$11,788 NZD
Retailer 8$12,148 NZD
Retailer 1$12,495 NZD
Retailer 2$12,654 NZD
Retailer 7$14,152 NZD
Retailer 6$14,494 NZD
Retailer 9$14,982 NZD

43 data points across 9 retailers

9 retailers$11,324 NZD to $15,082 NZD

A
Cheapest Retailer
-
$11,324 NZD
SGD 8,610 SGD
A
Retailer 2
-
$11,640 NZD
$6,549 USD
View
A
Retailer 3
-
$11,788 NZD
SGD 8,963 SGD
View
A
Retailer 4
-
$12,148 NZD
$6,835 USD
View
A
Retailer 5
-
$12,495 NZD
£5,536 GBP
View
A
Retailer 6
-
$12,654 NZD
$7,120 USD
View
A
Retailer 7
-
$14,152 NZD
$7,963 USD
View
A
Retailer 8
-
$14,494 NZD
$8,155 USD
View
Most Expensive
A
The Diamond Guys
1955282050 · Nov 2
$15,082 NZD
$8,486 USD
View
8 more retailers have this diamond
Prices start from $11,324 NZDSave up to $3,758 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
$11,324 NZD