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Marquise|Natural|GIA

1.51ct M SI1 Marquise Natural Diamond

EX • M/SI1 • GIA 2557581854

Certificate GIA 2557581854

Diamond specifications and retailer prices

From $2,248 SGD
As of November 4, 2026
Save $1,465 SGD (39%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,713 SGD at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557581854. Listed at 4 retailers as of November 4, 2026, with prices from $2,248 to $3,713, a $1,465 spread on the same certified stone. Wholesale Diamonds Direct lists it at $3,713. 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
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle38.47°
Pavilion angle40.92°
OriginNatural
Grading LabGIA
CertificateGIA 2557581854
Dimensions11.96 × 5.86 × 3.67 mm
L/W Ratio2.04
Culet sizeNone
Top View
11.96 mm5.86 mm1.51 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2557581854
Side View
Table 59.0%Crown 38.47°Girdle: MED-THKPavilion 40.92°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
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: $2,891 SGD|Low: $1,887 SGD|High: $4,320 SGD|Avg: $3,108 SGD|-18.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Wholesale Diamonds Direct
November 3, 2026
Retailer 6$1,887 SGD
Retailer 2$2,248 SGD
Retailer 1$2,891 SGD
Retailer 5$2,922 SGD
Retailer 3$3,525 SGD
Retailer 4$3,695 SGD
Wholesale Diamonds Direct$3,713 SGD

25 data points across 7 retailers

4 retailers$2,248 SGD to $3,713 SGD

A
Cheapest Retailer
-
$2,248 SGD
B+
Retailer 2
-
$2,891 SGD
View
B+
Retailer 3
-
$2,922 SGD
View
Most Expensive
B+
Wholesale Diamonds Direct
319435365 · Nov 4
$3,713 SGD
$2,907 USD
View
3 more retailers have this diamond
Prices start from $2,248 SGDSave up to $1,465 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
$2,248 SGD