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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 $8,002 SGD
As of November 4, 2026
Save $2,873 SGD (26%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $10,876 SGD at The Diamond Guys · As of November 6, 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 10 retailers as of November 4, 2026, with prices from $8,002 to $10,876, a $2,873 spread on the same certified stone. The Diamond Guys lists it at $10,876. 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 4
Current: $8,585 SGD|Low: $8,002 SGD|High: $11,354 SGD|Avg: $9,491 SGD|-10.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$8,002 SGD
Retailer 9$8,393 SGD
Retailer 4$8,547 SGD
Retailer 1$8,585 SGD
Retailer 3$8,819 SGD
Retailer 5$8,971 SGD
Retailer 7$10,012 SGD
Retailer 2$10,149 SGD
Retailer 6$10,253 SGD

43 data points across 9 retailers

10 retailers$8,002 SGD to $10,876 SGD

A
Cheapest Retailer
-
$8,002 SGD
A
Retailer 2
-
$8,393 SGD
View
A
Retailer 3
-
$8,547 SGD
View
A
Retailer 4
-
$8,585 SGD
View
A
Retailer 5
-
$8,819 SGD
View
A
Retailer 6
-
$8,971 SGD
View
A
Retailer 7
-
$10,012 SGD
View
A
Retailer 8
-
$10,149 SGD
View
A
Retailer 9
-
$10,253 SGD
View
Most Expensive
A
The Diamond Guys
1955282050 · Nov 6
$10,876 SGD
$8,486 USD
View
9 more retailers have this diamond
Prices start from $8,002 SGDSave up to $2,873 SGD

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
$8,002 SGD