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Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

GD • F/SI2 • GIA 6552531907

Certificate GIA 6552531907

Diamond specifications and retailer prices

From $538 USD
HK$4,200 HKD
As of November 1, 2026
Save $1,448 USD (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,986 USD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6552531907. Listed at 15 retailers as of November 1, 2026, with prices from $538 to $1,986, a $1,448 spread on the same certified stone. NZ Jewellers lists it at $1,986. 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
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552531907
Dimensions8.34 × 4.13 × 2.58 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
8.34 mm4.13 mm0.51 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552531907
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 62.5%

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: $780 USD|Low: $538 USD|High: $1,481 USD|Avg: $789 USD|+6.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 9$538 USD
Retailer 7$584 USD
Retailer 10$633 USD
Retailer 6$649 USD
Retailer 8$682 USD
Retailer 2$750 USD
Retailer 1$780 USD
Retailer 5$794 USD
Retailer 4$932 USD
Retailer 3$1,463 USD

44 data points across 10 retailers

15 retailers$538 USD to $1,986 USD

A
Cheapest Retailer
-
$538 USD
HK$4,200 HKD
B+
Retailer 2
-
$584 USD
View
Final sale: no returns
B+
Retailer 3
-
$633 USD
View
B+
Retailer 4
-
$649 USD
View
B+
Retailer 5
-
$659 USD
SGD 891 SGD
View
B+
Retailer 6
-
$682 USD
View
B+
Retailer 7
-
$682 USD
View
Retailer 8
-
$731 USD
View
Price last confirmed 57 days ago
B+
Retailer 9
-
$731 USD
View
B+
Retailer 10
-
$765 USD
View
B+
Retailer 11
-
$780 USD
£614 GBP
View
B+
Retailer 12
-
$794 USD
£625 GBP
View
B
Retailer 13
-
$932 USD
€888 EUR
View
B
Retailer 14
-
$1,463 USD
£1,152 GBP
View
Most Expensive
C
NZ Jewellers
f0449ea3-d67a-4071-9790-c0195c56378c · Nov 3
$1,986 USD
View
14 more retailers have this diamond
Prices start from $538 USDSave up to $1,448 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
0.51ct Marquise
$538 USD