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Marquise|Natural|GIA

1.51ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2566145579

Certificate GIA 2566145579

Diamond specifications and retailer prices

From $9,433 SGD
As of November 3, 2026
Save $4,614 SGD (33%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $14,046 SGD at Diamonds Direct · As of November 1, 2026
View at Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566145579. Listed at 12 retailers as of November 1, 2026, with prices from $9,433 to $14,046, a $4,614 spread on the same certified stone. Diamonds Direct lists it at $14,046. 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

1.51
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle40.32°
OriginNatural
Grading LabGIA
CertificateGIA 2566145579
Dimensions11.21 × 5.93 × 3.77 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.21 mm5.93 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566145579
Side View
Table 60.0%Crown 38.2°Girdle: MED-THKPavilion 40.32°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $14,046 SGD|Low: $9,433 SGD|High: $14,480 SGD|Avg: $11,853 SGD|-3.0%
Diamonds Direct
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 2$9,433 SGD
Retailer 6$10,002 SGD
Retailer 9$10,289 SGD
Retailer 4$10,442 SGD
Retailer 12$10,486 SGD
Retailer 10$10,630 SGD
Retailer 5$10,749 SGD
Retailer 3$12,258 SGD
Retailer 8$12,372 SGD
Retailer 11$12,559 SGD
Retailer 7$12,623 SGD
Diamonds Direct$14,046 SGD

34 data points across 12 retailers

12 retailers$9,433 SGD to $14,046 SGD

A
Cheapest Retailer
-
$9,433 SGD
A
Retailer 2
-
$10,002 SGD
$7,821 USD
View
A
Retailer 3
-
$10,289 SGD
$8,045 USD
View
Retailer 4
-
$10,442 SGD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$10,486 SGD
$8,199 USD
View
A
Retailer 6
-
$10,630 SGD
$8,312 USD
View
A
Retailer 7
-
$10,749 SGD
£6,618 GBP
View
B+
Retailer 8
-
$12,258 SGD
$9,585 USD
View
B+
Retailer 9
-
$12,372 SGD
$9,674 USD
View
Retailer 10
-
$12,559 SGD
$9,820 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
$12,623 SGD
€9,400 EUR
View
Most Expensive
B
Diamonds Direct
1112120 · Nov 1
$14,046 SGD
$10,983 USD
View
11 more retailers have this diamond
Prices start from $9,433 SGDSave up to $4,614 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
1.51ct Marquise
$9,433 SGD