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Marquise|Natural|GIA

1.50ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 1457090445

Certificate GIA 1457090445

Diamond specifications and retailer prices

From $13,702 SGD
$10,714 USD
As of November 2, 2026
Save $11,423 SGD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $25,125 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 F 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 1457090445. Listed at 12 retailers as of October 30, 2026, with prices from $13,702 to $25,125, a $11,423 spread on the same certified stone. NZ Jewellers lists it at $25,125. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1457090445
Dimensions11.68 × 6.07 × 3.50 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Cert comments
Clouds are not shown. Pinpoints are not shown.
Top View
11.68 mm6.07 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1457090445
Side View
Table 59.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 57.6%

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 2
Current: $25,125 SGD|Low: $13,702 SGD|High: $25,125 SGD|Avg: $17,865 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 8$13,702 SGD
Retailer 10$14,124 SGD
Retailer 6$15,041 SGD
Retailer 9$16,332 SGD
Retailer 4$16,473 SGD
Retailer 7$16,582 SGD
Retailer 2$16,866 SGD
Retailer 3$18,989 SGD
Retailer 5$23,544 SGD
NZ Jewellers$25,125 SGD

42 data points across 10 retailers

12 retailers$13,702 SGD to $25,125 SGD

B+
Cheapest Retailer
-
$13,702 SGD
$10,714 USD
B
Retailer 2
-
$14,124 SGD
$11,044 USD
View
B+
Retailer 3
-
$14,880 SGD
$11,635 USD
View
B+
Retailer 4
-
$15,041 SGD
$11,761 USD
View
Final sale: no returns
B
Retailer 5
-
$16,332 SGD
$12,770 USD
View
B
Retailer 6
-
$16,473 SGD
£10,142 GBP
View
B
Retailer 7
-
$16,582 SGD
$12,966 USD
View
B
Retailer 8
-
$16,866 SGD
£10,384 GBP
View
B
Retailer 9
-
$18,843 SGD
$14,734 USD
View
B
Retailer 10
-
$18,989 SGD
€14,141 EUR
View
B
Retailer 11
-
$23,544 SGD
£14,496 GBP
View
Most Expensive
B
NZ Jewellers
509fd407-2f62-48bc-9d7b-a8d631103646 · Oct 30
$25,125 SGD
$19,646 USD
View
11 more retailers have this diamond
Prices start from $13,702 SGDSave up to $11,423 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
$13,702 SGD