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Marquise|Natural|GIA

1.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 5543246564

Certificate GIA 5543246564

Diamond specifications and retailer prices

From $11,294 SGD
$8,831 USD
As of November 1, 2026
Save $8,810 SGD (44%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $20,104 SGD at NZ Jewellers · As of October 30, 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 5543246564. Listed at 16 retailers as of October 30, 2026, with prices from $11,294 to $20,104, a $8,810 spread on the same certified stone. NZ Jewellers lists it at $20,104. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543246564
Dimensions12.38 × 5.80 × 3.59 mm
L/W Ratio2.13
Top View
12.38 mm5.80 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543246564
Side View
Table 61.0%CrownGirdle: Ext. ThickPavilionCulet: NDepth 61.9%

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 1
Current: $20,104 SGD|Low: $12,063 SGD|High: $20,104 SGD|Avg: $15,217 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8$12,063 SGD
Retailer 10$13,068 SGD
Retailer 5$13,203 SGD
Retailer 9$13,269 SGD
Retailer 3$13,269 SGD
Retailer 4$13,688 SGD
Retailer 11$15,078 SGD
Retailer 7$15,198 SGD
Retailer 6$17,722 SGD
Retailer 2$18,839 SGD
NZ Jewellers$20,104 SGD

30 data points across 11 retailers

16 retailers$11,294 SGD to $20,104 SGD

B+
Cheapest Retailer
-
$11,294 SGD
$8,831 USD
B+
Retailer 2
-
$11,303 SGD
$8,838 USD
View
B
Retailer 3
-
$12,063 SGD
$9,432 USD
View
B
Retailer 4
-
$12,164 SGD
$9,511 USD
View
B
Retailer 5
-
$12,864 SGD
$10,058 USD
View
B+
Retailer 6
-
$13,068 SGD
$10,218 USD
View
B+
Retailer 7
-
$13,203 SGD
£8,129 GBP
View
B
Retailer 8
-
$13,269 SGD
$10,375 USD
View
Retailer 9
-
$13,269 SGD
A$15,962 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$13,688 SGD
£8,428 GBP
View
B
Retailer 11
-
$15,078 SGD
$11,790 USD
View
B
Retailer 12
-
$15,198 SGD
€11,318 EUR
View
Retailer 13
-
$15,874 SGD
$12,412 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
$17,722 SGD
ZAR 223,860 ZAR
View
B
Retailer 15
-
$18,839 SGD
£11,599 GBP
View
Most Expensive
B
NZ Jewellers
d80cf3e7-7dbd-4a31-8e40-ad03c8d18939 · Oct 30
$20,104 SGD
$15,720 USD
View
15 more retailers have this diamond
Prices start from $11,294 SGDSave up to $8,810 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
$11,294 SGD