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Marquise|Natural|GIA

1.50ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 6552621628

Certificate GIA 6552621628

Diamond specifications and retailer prices

From $12,962 SGD
$10,135 USD
As of November 1, 2026
Save $10,991 SGD (46%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $23,953 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 6552621628. Listed at 22 retailers as of October 30, 2026, with prices from $12,962 to $23,953, a $10,991 spread on the same certified stone. NZ Jewellers lists it at $23,953. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552621628
Dimensions11.12 × 6.01 × 3.69 mm
L/W Ratio1.85
Key to symbols
Feather, Crystal, Needle, Natural
Top View
11.12 mm6.01 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552621628
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 61.3%

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: $16,079 SGD|Low: $12,962 SGD|High: $22,716 SGD|Avg: $16,475 SGD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10$12,962 SGD
Retailer 11$13,335 SGD
Retailer 12$14,177 SGD
Retailer 2$14,491 SGD
Retailer 6$15,542 SGD
Retailer 9$15,628 SGD
Retailer 3$15,808 SGD
Retailer 4$15,913 SGD
Retailer 1$16,079 SGD
Retailer 5$17,309 SGD
Retailer 8$21,114 SGD
Retailer 7$22,445 SGD

38 data points across 12 retailers

22 retailers$12,962 SGD to $23,953 SGD

B+
Cheapest Retailer
-
$12,962 SGD
$10,135 USD
B+
Retailer 2
-
$13,335 SGD
$10,427 USD
View
B+
Retailer 3
-
$13,396 SGD
$10,475 USD
View
B+
Retailer 4
-
$14,177 SGD
$11,085 USD
View
B+
Retailer 5
-
$14,372 SGD
$11,238 USD
View
B
Retailer 6
-
$14,491 SGD
$11,331 USD
View
B+
Retailer 7
-
$15,542 SGD
£9,569 GBP
View
B+
Retailer 8
-
$15,569 SGD
$12,174 USD
View
Retailer 9
-
$15,628 SGD
A$18,800 AUD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
$15,808 SGD
$12,361 USD
View
B
Retailer 11
-
$15,913 SGD
$12,443 USD
View
B+
Retailer 12
-
$16,079 SGD
£9,899 GBP
View
B
Retailer 13
-
$16,741 SGD
$13,090 USD
View
B
Retailer 14
-
$16,741 SGD
$13,090 USD
View
B
Retailer 15
-
$17,083 SGD
$13,358 USD
View
B
Retailer 16
-
$17,304 SGD
$13,530 USD
View
B
Retailer 17
-
$17,309 SGD
€12,890 EUR
View
B
Retailer 18
-
$17,965 SGD
$14,047 USD
View
Retailer 19
-
$18,905 SGD
$14,782 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
$21,114 SGD
ZAR 266,712 ZAR
View
B
Retailer 21
-
$22,445 SGD
£13,819 GBP
View
Most Expensive
B
NZ Jewellers
67900167-de5d-4b53-ac4f-ac2b59c55360 · Oct 30
$23,953 SGD
$18,729 USD
View
21 more retailers have this diamond
Prices start from $12,962 SGDSave up to $10,991 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
$12,962 SGD