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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 $7,449 USD
SGD 10,066 SGD
As of November 1, 2026
Save $3,534 USD (32%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $10,983 USD 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 $7,449 to $10,983, a $3,534 spread on the same certified stone. Diamonds Direct lists it at $10,983. 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
Color
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 1
Current: $10,983 USD|Low: $7,449 USD|High: $11,322 USD|Avg: $9,217 USD|-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 2, 2026
Retailer 8$7,449 USD
Retailer 2$7,821 USD
Retailer 9$8,045 USD
Retailer 4$8,165 USD
Retailer 12$8,199 USD
Retailer 10$8,312 USD
Retailer 6$8,419 USD
Retailer 3$9,585 USD
Retailer 7$9,674 USD
Retailer 11$9,820 USD
Retailer 5$9,870 USD
Diamonds Direct$10,983 USD

34 data points across 12 retailers

12 retailers$7,449 USD to $10,983 USD

A
Cheapest Retailer
-
$7,449 USD
SGD 10,066 SGD
A
Retailer 2
-
$7,821 USD
View
A
Retailer 3
-
$8,045 USD
View
Retailer 4
-
$8,165 USD
SGD 11,034 SGD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$8,199 USD
View
A
Retailer 6
-
$8,312 USD
View
A
Retailer 7
-
$8,419 USD
£6,629 GBP
View
B+
Retailer 8
-
$9,585 USD
View
B+
Retailer 9
-
$9,674 USD
View
Retailer 10
-
$9,820 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
$9,870 USD
€9,400 EUR
View
Most Expensive
B
Diamonds Direct
1112120 · Nov 1
$10,983 USD
View
11 more retailers have this diamond
Prices start from $7,449 USDSave up to $3,534 USD

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
$7,449 USD