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Marquise|Natural|GIA

1.50ct M SI1 Marquise Natural Diamond

EX • M/SI1 • GIA 3555373615

Certificate GIA 3555373615

Diamond specifications and retailer prices

From $3,629 SGD
As of November 6, 2026
Save $3,626 SGD (50%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,255 SGD at Wholesale Diamonds Direct · As of November 4, 2026
View at Wholesale Diamonds Direct

About this 1.5ct natural marquise diamond

This 1.5ct 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 3555373615. Listed at 9 retailers as of November 4, 2026, with prices from $3,629 to $7,255, a $3,626 spread on the same certified stone. Wholesale Diamonds Direct lists it at $7,255. 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

1.50
Carat
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555373615
Dimensions10.96 × 5.92 × 3.88 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
10.96 mm5.92 mm1.50 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555373615
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.5%

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: Nov 6
Current: $5,508 SGD|Low: $3,597 SGD|High: $8,797 SGD|Avg: $5,268 SGD|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 6, 2026
Retailer 6$3,629 SGD
Retailer 10$4,022 SGD
Retailer 8$4,040 SGD
Retailer 4$4,174 SGD
Retailer 5$4,349 SGD
Retailer 7$4,389 SGD
Retailer 9$4,905 SGD
Retailer 1$5,508 SGD
Retailer 3$6,093 SGD
Wholesale Diamonds Direct$7,255 SGD
Retailer 2$8,797 SGD

21 data points across 11 retailers

9 retailers$3,629 SGD to $7,255 SGD

A
Cheapest Retailer
-
$3,629 SGD
B+
Retailer 2
-
$4,040 SGD
View
B+
Retailer 3
-
$4,174 SGD
View
Final sale: no returns
B+
Retailer 4
-
$4,349 SGD
View
B+
Retailer 5
-
$4,389 SGD
View
B
Retailer 6
-
$4,905 SGD
View
B
Retailer 7
-
$5,508 SGD
View
B
Retailer 8
-
$6,093 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
625971138 · Nov 4
$7,255 SGD
$5,680 USD
View
8 more retailers have this diamond
Prices start from $3,629 SGDSave up to $3,626 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
1.50ct Marquise
$3,629 SGD