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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 $10,409 CAD
SGD 10,066 SGD
As of November 1, 2026
Save $4,939 CAD (32%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $15,348 CAD 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 $10,409 to $15,348, a $4,939 spread on the same certified stone. Diamonds Direct lists it at $15,348. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $15,348 CAD|Low: $10,409 CAD|High: $15,821 CAD|Avg: $12,958 CAD|-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 8$10,409 CAD
Retailer 5$10,929 CAD
Retailer 9$11,242 CAD
Retailer 4$11,410 CAD
Retailer 12$11,457 CAD
Retailer 10$11,615 CAD
Retailer 2$11,745 CAD
Retailer 3$13,394 CAD
Retailer 7$13,518 CAD
Retailer 11$13,723 CAD
Retailer 6$13,792 CAD
Diamonds Direct$15,348 CAD

34 data points across 12 retailers

12 retailers$10,409 CAD to $15,348 CAD

A
Cheapest Retailer
-
$10,409 CAD
SGD 10,066 SGD
A
Retailer 2
-
$10,929 CAD
$7,821 USD
View
A
Retailer 3
-
$11,242 CAD
$8,045 USD
View
Retailer 4
-
$11,410 CAD
SGD 11,034 SGD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$11,457 CAD
$8,199 USD
View
A
Retailer 6
-
$11,615 CAD
$8,312 USD
View
A
Retailer 7
-
$11,745 CAD
£6,618 GBP
View
B+
Retailer 8
-
$13,394 CAD
$9,585 USD
View
B+
Retailer 9
-
$13,518 CAD
$9,674 USD
View
Retailer 10
-
$13,723 CAD
$9,820 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
$13,792 CAD
€9,400 EUR
View
Most Expensive
B
Diamonds Direct
1112120 · Nov 1
$15,348 CAD
$10,983 USD
View
11 more retailers have this diamond
Prices start from $10,409 CADSave up to $4,939 CAD

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
$10,409 CAD