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Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

VG • F/SI2 • GIA 6565139322

Certificate GIA 6565139322

Diamond specifications and retailer prices

From $1,084 NZD
SGD 824 SGD
As of November 2, 2026
Save $753 NZD (41%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,836 NZD 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 F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6565139322. Listed at 7 retailers as of November 2, 2026, with prices from $1,084 to $1,836, a $753 spread on the same certified stone. Frank Darling lists it at $1,836. 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
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565139322
Dimensions7.90 × 4.17 × 2.65 mm
L/W Ratio1.89
Culet sizeNone
Top View
7.90 mm4.17 mm0.51 ctF / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565139322
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.4%

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: Nov 2
Current: $1,836 NZD|Low: $1,082 NZD|High: $1,836 NZD|Avg: $1,403 NZD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9$1,084 NZD
Retailer 5$1,096 NZD
Retailer 7$1,111 NZD
Retailer 2$1,272 NZD
Retailer 8$1,408 NZD
Retailer 6$1,515 NZD
Retailer 3$1,530 NZD
Retailer 4$1,587 NZD
Retailer 10$1,621 NZD
Frank Darling$1,836 NZD

26 data points across 10 retailers

7 retailers$1,084 NZD to $1,836 NZD

A
Cheapest Retailer
-
$1,084 NZD
SGD 824 SGD
Retailer 2
-
$1,111 NZD
$625 USD
View
Price last confirmed 26 days ago
B+
Retailer 3
-
$1,272 NZD
£564 GBP
View
B+
Retailer 4
-
$1,408 NZD
$792 USD
View
B+
Retailer 5
-
$1,530 NZD
£678 GBP
View
Retailer 6
-
$1,621 NZD
$912 USD
View
Price last confirmed 24 days ago
Most Expensive
B
Frank Darling
2679412HK · Nov 2
$1,836 NZD
$1,033 USD
View
6 more retailers have this diamond
Prices start from $1,084 NZDSave up to $753 NZD

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
$1,084 NZD