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Marquise|Natural|GIA

0.51ct G SI2 Marquise Natural Diamond

VG • G/SI2 • GIA 1569140330

Certificate GIA 1569140330

Diamond specifications and retailer prices

From $693 AUD
SGD 656 SGD
As of October 31, 2026
Save $675 AUD (49%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,368 AUD at Frank Darling · As of November 2, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1569140330. Listed at 9 retailers as of October 31, 2026, with prices from $693 to $1,368, a $675 spread on the same certified stone. Frank Darling lists it at $1,368. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1569140330
Dimensions7.61 × 4.11 × 2.69 mm
L/W Ratio1.85
Culet sizeNone
Top View
7.61 mm4.11 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1569140330
Side View
Table 58.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 65.4%

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: Oct 31
Current: $1,368 AUD|Low: $693 AUD|High: $1,405 AUD|Avg: $1,012 AUD|-2.7%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7$693 AUD
Retailer 8$757 AUD
Retailer 2$785 AUD
Retailer 6$891 AUD
Retailer 5$986 AUD
Retailer 4$1,076 AUD
Retailer 3$1,113 AUD
Retailer 9$1,138 AUD
Frank Darling$1,368 AUD

38 data points across 9 retailers

9 retailers$693 AUD to $1,368 AUD

A
Cheapest Retailer
-
$693 AUD
SGD 656 SGD
A
Retailer 2
-
$757 AUD
SGD 717 SGD
View
A
Retailer 3
-
$785 AUD
$550 USD
View
A
Retailer 4
-
$891 AUD
£491 GBP
View
A
Retailer 5
-
$986 AUD
$691 USD
View
B+
Retailer 6
-
$1,076 AUD
€718 EUR
View
B+
Retailer 7
-
$1,113 AUD
$780 USD
View
B+
Retailer 8
-
$1,138 AUD
$798 USD
View
Most Expensive
B
Frank Darling
2679426HK · Nov 2
$1,368 AUD
$958 USD
View
8 more retailers have this diamond
Prices start from $693 AUDSave up to $675 AUD

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
$693 AUD