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Marquise|Natural|GIA

1.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 6555718804

Certificate GIA 6555718804

Diamond specifications and retailer prices

From $11,720 SGD
As of November 1, 2026
Save $10,754 SGD (48%) vs most expensive(unlock to see where)
31 retailers carry this diamond
Most expensive: $22,474 SGD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

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 6555718804. Listed at 31 retailers as of November 1, 2026, with prices from $11,720 to $22,474, a $10,754 spread on the same certified stone. NZ Jewellers lists it at $22,474. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555718804
Dimensions10.91 × 5.92 × 3.77 mm
L/W Ratio1.84
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural, Natural
Top View
10.91 mm5.92 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6555718804
Side View
Table 63.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.8%

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 1
Current: $22,474 SGD|Low: $10,745 SGD|High: $22,474 SGD|Avg: $14,997 SGD
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 24
Retailer 25
Retailer 26
Retailer 27
Retailer 28
Retailer 29
November 5, 2026
Retailer 28$11,720 SGD
Retailer 23$11,989 SGD
Retailer 16$12,047 SGD
Retailer 12$12,496 SGD
Retailer 4$12,512 SGD
Retailer 17$12,861 SGD
Retailer 27$12,893 SGD
Retailer 10$13,259 SGD
Retailer 15$13,322 SGD
Retailer 11$13,485 SGD
Retailer 29$13,485 SGD
Retailer 18$14,369 SGD
Retailer 19$14,385 SGD
Retailer 2$14,428 SGD
Retailer 3$14,609 SGD
Retailer 26$14,649 SGD
Retailer 14$14,833 SGD
Retailer 9$14,914 SGD
Retailer 5$15,042 SGD
Retailer 20$15,159 SGD
Retailer 22$15,269 SGD
Retailer 21$16,028 SGD
Retailer 7$16,065 SGD
Retailer 8$16,428 SGD
Retailer 6$16,856 SGD
Retailer 24$16,985 SGD
Retailer 25$19,810 SGD
Retailer 13$21,003 SGD
NZ Jewellers$22,474 SGD

38 data points across 29 retailers

31 retailers$11,720 SGD to $22,474 SGD

Retailer 1
-
$9,694 SGD
Price last confirmed 43 days ago
A
Retailer 2
-
$11,720 SGD
View
A
Retailer 3
-
$11,989 SGD
View
A
Retailer 4
-
$12,047 SGD
View
B+
Retailer 5
-
$12,496 SGD
View
B+
Retailer 6
-
$12,512 SGD
View
B+
Retailer 7
-
$12,658 SGD
View
B+
Retailer 8
-
$12,861 SGD
View
B+
Retailer 9
-
$12,893 SGD
View
B+
Retailer 10
-
$13,259 SGD
View
B+
Retailer 11
-
$13,322 SGD
View
Retailer 12
-
$13,485 SGD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$13,485 SGD
View
Final sale: no returns
B+
Retailer 14
-
$14,369 SGD
View
B+
Retailer 15
-
$14,385 SGD
View
B+
Retailer 16
-
$14,428 SGD
View
B+
Retailer 17
-
$14,609 SGD
View
Retailer 18
-
$14,649 SGD
View
Price last confirmed 15 days ago
B+
Retailer 19
-
$14,833 SGD
View
B+
Retailer 20
-
$14,914 SGD
View
B+
Retailer 21
-
$15,042 SGD
View
Retailer 22
-
$15,100 SGD
View
Price last confirmed 67 days ago
Retailer 23
-
$15,159 SGD
View
Price last confirmed 24 days ago
B
Retailer 24
-
$16,028 SGD
View
B
Retailer 25
-
$16,065 SGD
View
B
Retailer 26
-
$16,428 SGD
View
B+
Retailer 27
-
$16,856 SGD
View
B+
Retailer 28
-
$16,985 SGD
View
B
Retailer 29
-
$19,810 SGD
View
B
Retailer 30
-
$21,003 SGD
View
Most Expensive
B
NZ Jewellers
9010dca9-b235-4b2b-8fda-183916b6f45c · Nov 3
$22,474 SGD
$17,536 USD
View
30 more retailers have this diamond
Prices start from $11,720 SGDSave up to $10,754 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
$11,720 SGD