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Marquise|Natural|GIA

1.50ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 6521836472

Certificate GIA 6521836472

Diamond specifications and retailer prices

From $10,353 SGD
$8,095 USD
As of October 29, 2026
Save $7,224 SGD (41%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $18,659 SGD at NZ Jewellers · As of October 24, 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 6521836472. Listed at 19 retailers as of October 29, 2026, with a 70% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6521836472
Dimensions11.05 × 5.98 × 3.81 mm
L/W Ratio1.85
Top View
11.05 mm5.98 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6521836472
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: 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: Oct 29
Current: $18,659 SGD|Low: $10,353 SGD|High: $18,659 SGD|Avg: $13,399 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
October 30, 2026
Retailer 7$10,353 SGD
Retailer 4$10,482 SGD
Retailer 5$11,114 SGD
Retailer 9$11,195 SGD
Retailer 6$11,289 SGD
Retailer 11$12,128 SGD
Retailer 2$12,240 SGD
Retailer 15$12,298 SGD
Retailer 10$12,315 SGD
Retailer 12$12,598 SGD
Retailer 3$13,994 SGD
Retailer 14$14,085 SGD
Retailer 8$14,735 SGD
Retailer 16$16,156 SGD
Retailer 13$17,577 SGD
NZ Jewellers$18,659 SGD

33 data points across 16 retailers

19 retailers$10,353 SGD to $17,577 SGD

A
Cheapest Retailer
-
$10,353 SGD
$8,095 USD
A
Retailer 2
-
$10,482 SGD
$8,196 USD
View
B+
Retailer 3
-
$11,114 SGD
$8,690 USD
View
B+
Retailer 4
-
$11,195 SGD
$8,754 USD
View
B+
Retailer 5
-
$11,289 SGD
$8,827 USD
View
B+
Retailer 6
-
$11,607 SGD
CA$12,606 CAD
View
B+
Retailer 7
-
$12,128 SGD
$9,483 USD
View
B+
Retailer 8
-
$12,240 SGD
£7,536 GBP
View
Retailer 9
-
$12,298 SGD
A$14,794 AUD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
$12,315 SGD
$9,629 USD
View
B+
Retailer 11
-
$12,372 SGD
$9,674 USD
View
B+
Retailer 12
-
$12,598 SGD
£7,757 GBP
View
B
Retailer 13
-
$13,799 SGD
$10,790 USD
View
Retailer 14
-
$13,994 SGD
$10,942 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$14,085 SGD
€10,489 EUR
View
Retailer 16
-
$14,735 SGD
$11,522 USD
View
Price last confirmed 10 days ago
Retailer 17
-
$16,156 SGD
ZAR 204,081 ZAR
View
Price last confirmed 11 days ago
B
Retailer 18
-
$17,577 SGD
£10,822 GBP
View
Most Expensive
NZ Jewellers
e7d56399-7740-427f-9adc-ec984f0dcb57 · Oct 24
$18,659 SGD
$14,590 USD
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from $10,353 SGDSave up to $7,224 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
$10,353 SGD