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Marquise|Natural|GIA

1.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2544995398

Certificate GIA 2544995398

Diamond specifications and retailer prices

From $10,165 SGD
$7,951 USD
As of November 2, 2026
Save $8,143 SGD (44%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $18,308 SGD at NZ Jewellers · As of October 27, 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 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 2544995398. Listed at 21 retailers as of October 27, 2026, with prices from $10,165 to $18,308, a $8,143 spread on the same certified stone. NZ Jewellers lists it at $18,308. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2544995398
Dimensions10.95 × 5.92 × 3.84 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.95 mm5.92 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2544995398
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 64.9%

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 2
Current: $18,308 SGD|Low: $10,165 SGD|High: $18,308 SGD|Avg: $12,846 SGD
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 11$10,165 SGD
Retailer 5$10,285 SGD
Retailer 20$10,911 SGD
Retailer 4$10,985 SGD
Retailer 10$11,076 SGD
Retailer 6$11,385 SGD
Retailer 12$11,710 SGD
Retailer 17$11,901 SGD
Retailer 15$11,908 SGD
Retailer 21$12,063 SGD
Retailer 3$12,083 SGD
Retailer 7$12,135 SGD
Retailer 2$12,464 SGD
Retailer 9$13,464 SGD
Retailer 8$13,534 SGD
Retailer 19$13,731 SGD
Retailer 13$13,838 SGD
Retailer 14$14,459 SGD
Retailer 18$16,138 SGD
Retailer 16$17,156 SGD
NZ Jewellers$18,308 SGD

19 data points across 21 retailers

21 retailers$10,165 SGD to $18,308 SGD

B+
Cheapest Retailer
-
$10,165 SGD
$7,951 USD
B+
Retailer 2
-
$10,285 SGD
$8,045 USD
View
B+
Retailer 3
-
$10,911 SGD
$8,535 USD
View
Retailer 4
-
$10,985 SGD
$8,593 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$11,076 SGD
$8,664 USD
View
B
Retailer 6
-
$11,385 SGD
CA$12,369 CAD
View
B
Retailer 7
-
$11,710 SGD
$9,160 USD
View
B
Retailer 8
-
$11,901 SGD
$9,309 USD
View
B
Retailer 9
-
$11,908 SGD
£7,334 GBP
View
Retailer 10
-
$12,063 SGD
A$14,517 AUD
View
Price last confirmed 9 days ago
Retailer 11
-
$12,083 SGD
$9,452 USD
View
Price last confirmed 7 days ago
B
Retailer 12
-
$12,135 SGD
$9,492 USD
View
B+
Retailer 13
-
$12,464 SGD
£7,677 GBP
View
B
Retailer 14
-
$13,464 SGD
$10,532 USD
View
B
Retailer 15
-
$13,534 SGD
$10,587 USD
View
B
Retailer 16
-
$13,731 SGD
$10,741 USD
View
B
Retailer 17
-
$13,838 SGD
€10,309 EUR
View
Retailer 18
-
$14,459 SGD
$11,310 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
$16,138 SGD
ZAR 203,930 ZAR
View
B
Retailer 20
-
$17,156 SGD
£10,567 GBP
View
Most Expensive
B
NZ Jewellers
b540eeae-3f64-4cdf-8e35-f742a2ceb8b4 · Oct 27
$18,308 SGD
$14,321 USD
View
20 more retailers have this diamond
Prices start from $10,165 SGDSave up to $8,143 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
$10,165 SGD