CaratHunter
Plans
Marquise|Natural|GIA

1.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 6555333072

Certificate GIA 6555333072

Diamond specifications and retailer prices

From $12,890 SGD
As of November 5, 2026
Save $9,011 SGD (41%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $21,901 SGD at MOH London · As of November 4, 2026
View at MOH London

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 6555333072. Listed at 21 retailers as of November 4, 2026, with prices from $12,890 to $21,901, a $9,011 spread on the same certified stone. MOH London lists it at $21,901. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555333072
Dimensions11.51 × 6.05 × 3.55 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural, Natural
Top View
11.51 mm6.05 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555333072
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 58.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $21,901 SGD|Low: $11,368 SGD|High: $21,901 SGD|Avg: $14,854 SGD|+10.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$11,436 SGD
Retailer 4$12,890 SGD
Retailer 6$13,207 SGD
Retailer 7$13,563 SGD
Retailer 8$13,718 SGD
Retailer 10$13,789 SGD
Retailer 3$15,211 SGD
Retailer 5$15,283 SGD
Retailer 2$16,853 SGD
Retailer 11$18,185 SGD
MOH London$21,901 SGD

38 data points across 11 retailers

21 retailers$12,890 SGD to $21,901 SGD

Retailer 1
-
$11,436 SGD
Price last confirmed 8 days ago
Retailer 2
-
$12,676 SGD
View
Price last confirmed 8 days ago
Retailer 3
-
$12,831 SGD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$12,890 SGD
View
B+
Retailer 5
-
$13,098 SGD
View
B+
Retailer 6
-
$13,207 SGD
View
B+
Retailer 7
-
$13,563 SGD
View
Final sale: no returns
B+
Retailer 8
-
$13,718 SGD
View
Retailer 9
-
$13,789 SGD
View
Price last confirmed 15 days ago
Retailer 10
-
$13,828 SGD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$14,938 SGD
View
Retailer 12
-
$14,982 SGD
View
Price last confirmed 9 days ago
Retailer 13
-
$15,211 SGD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
$15,283 SGD
View
Retailer 15
-
$15,336 SGD
View
Price last confirmed 8 days ago
B
Retailer 16
-
$16,853 SGD
View
Retailer 17
-
$17,281 SGD
View
Price last confirmed 62 days ago
B+
Retailer 18
-
$17,286 SGD
View
Retailer 19
-
$18,185 SGD
View
Price last confirmed 21 days ago
Retailer 20
-
$20,881 SGD
View
Price last confirmed 8 days ago
Most Expensive
B
MOH London
2904DD41F · Nov 4
$21,901 SGD
£13,456 GBP
View
20 more retailers have this diamond
Prices start from $12,890 SGDSave up to $9,011 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.

B+
1.50ct Marquise
$12,890 SGD