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Marquise|Natural|GIA

0.51ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 2554757133

Certificate GIA 2554757133

Diamond specifications and retailer prices

From $474 CAD
SGD 459 SGD
As of November 1, 2026
Save $608 CAD (56%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,083 CAD at Frank Darling · As of November 1, 2026
View at Frank Darling

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554757133. Listed at 7 retailers as of November 1, 2026, with prices from $474 to $1,083, a $608 spread on the same certified stone. Frank Darling lists it at $1,083. 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

0.51
Carat
G
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554757133
Dimensions7.70 × 4.13 × 2.70 mm
L/W Ratio1.86
Culet sizeNone
Top View
7.70 mm4.13 mm0.51 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554757133
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.3%

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: $1,083 CAD|Low: $347 CAD|High: $1,165 CAD|Avg: $706 CAD|-7.1%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 28, 2026
Retailer 8$347 CAD
Retailer 5$474 CAD
Retailer 4$483 CAD
Retailer 3$558 CAD
Retailer 2$617 CAD
Retailer 10$655 CAD
Retailer 6$730 CAD
Retailer 7$915 CAD
Retailer 9$923 CAD
Frank Darling$1,083 CAD

24 data points across 10 retailers

7 retailers$474 CAD to $1,083 CAD

A
Cheapest Retailer
-
$474 CAD
SGD 459 SGD
A
Retailer 2
-
$483 CAD
SGD 467 SGD
View
A
Retailer 3
-
$558 CAD
£314 GBP
View
A
Retailer 4
-
$617 CAD
$442 USD
View
A
Retailer 5
-
$655 CAD
$469 USD
View
A
Retailer 6
-
$730 CAD
$523 USD
View
Most Expensive
B+
Frank Darling
2665115HK · Nov 1
$1,083 CAD
$775 USD
View
6 more retailers have this diamond
Prices start from $474 CADSave up to $608 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
0.51ct Marquise
$474 CAD