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Marquise|Natural|GIA

1.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7556372547

Certificate GIA 7556372547

Diamond specifications and retailer prices

From $11,077 SGD
As of November 6, 2026
Save $2,971 SGD (21%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $14,048 SGD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556372547. Listed at 8 retailers as of November 5, 2026, with prices from $11,077 to $14,048, a $2,971 spread on the same certified stone. Blue Nile lists it at $14,048. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556372547
Dimensions11.44 × 5.93 × 3.75 mm
L/W Ratio1.93
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Twinning Wisp, Needle
Top View
11.44 mm5.93 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7556372547
Side View
Table 61.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 63.3%

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: $14,048 SGD|Low: $10,751 SGD|High: $14,509 SGD|Avg: $12,393 SGD|-3.2%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$11,077 SGD
Retailer 4$11,226 SGD
Retailer 3$11,939 SGD
Retailer 5$12,024 SGD
Retailer 6$12,537 SGD
Retailer 7$12,894 SGD
Blue Nile$14,048 SGD

45 data points across 7 retailers

8 retailers$11,077 SGD to $14,048 SGD

A
Cheapest Retailer
-
$11,077 SGD
A
Retailer 2
-
$11,226 SGD
View
A
Retailer 3
-
$11,939 SGD
View
B+
Retailer 4
-
$12,024 SGD
View
B+
Retailer 5
-
$12,537 SGD
View
Final sale: no returns
B+
Retailer 6
-
$12,894 SGD
View
B+
Retailer 7
-
$13,204 SGD
View
Most Expensive
B+
Blue Nile
29351770 · Nov 5
$14,048 SGD
$10,961 USD
View
7 more retailers have this diamond
Prices start from $11,077 SGDSave up to $2,971 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
$11,077 SGD