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Marquise|Natural|GIA

1.50ct I SI1 Marquise Natural Diamond

ID • I/SI1 • GIA 5553439824

Certificate GIA 5553439824

Diamond specifications and retailer prices

From $9,643 SGD
$7,540 USD
As of November 1, 2026
Save $7,111 SGD (42%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $16,754 SGD at MOH London · As of November 2, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553439824. Listed at 15 retailers as of November 1, 2026, with prices from $9,643 to $16,754, a $7,111 spread on the same certified stone. MOH London lists it at $16,754. 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5553439824
Dimensions11.24 × 5.92 × 3.77 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Cavity, Natural, Extra Facet
Top View
11.24 mm5.92 mm1.50 ctI / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5553439824
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.7%

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 1
Current: $16,754 SGD|Low: $9,643 SGD|High: $16,957 SGD|Avg: $12,384 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 3$9,643 SGD
Retailer 13$10,496 SGD
Retailer 9$10,568 SGD
Retailer 10$11,172 SGD
Retailer 7$11,740 SGD
Retailer 8$12,032 SGD
Retailer 14$12,078 SGD
Retailer 11$12,462 SGD
Retailer 4$12,815 SGD
Retailer 6$12,815 SGD
Retailer 12$13,141 SGD
Retailer 5$13,237 SGD
Retailer 2$13,458 SGD
MOH London$16,754 SGD

30 data points across 14 retailers

15 retailers$9,643 SGD to $16,754 SGD

B+
Cheapest Retailer
-
$9,643 SGD
$7,540 USD
B+
Retailer 2
-
$10,496 SGD
$8,207 USD
View
B+
Retailer 3
-
$10,568 SGD
CA$11,477 CAD
View
B
Retailer 4
-
$11,172 SGD
$8,736 USD
View
B
Retailer 5
-
$11,740 SGD
£7,228 GBP
View
B
Retailer 6
-
$11,933 SGD
CA$12,960 CAD
View
B
Retailer 7
-
$12,032 SGD
$9,408 USD
View
B
Retailer 8
-
$12,078 SGD
$9,444 USD
View
B
Retailer 9
-
$12,462 SGD
$9,744 USD
View
B
Retailer 10
-
$12,815 SGD
$10,020 USD
View
B
Retailer 11
-
$12,815 SGD
$10,020 USD
View
B
Retailer 12
-
$13,141 SGD
$10,275 USD
View
B
Retailer 13
-
$13,237 SGD
$10,350 USD
View
B
Retailer 14
-
$13,458 SGD
€10,022 EUR
View
Most Expensive
B
MOH London
E5DF95E55 · Nov 2
$16,754 SGD
£10,315 GBP
View
14 more retailers have this diamond
Prices start from $9,643 SGDSave up to $7,111 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
$9,643 SGD