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Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 6561486563

Certificate GIA 6561486563

Diamond specifications and retailer prices

From $918 NZD
₹49,175 INR
As of November 2, 2026
Save $2,957 NZD (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,875 NZD 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561486563. Listed at 17 retailers as of November 2, 2026, with prices from $918 to $3,875, a $2,957 spread on the same certified stone. NZ Jewellers lists it at $3,875. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561486563
Dimensions8.17 × 4.17 × 2.65 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
8.17 mm4.17 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561486563
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: 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 2
Current: $3,875 NZD|Low: $916 NZD|High: $3,875 NZD|Avg: $1,723 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 3, 2026
Retailer 9$918 NZD
Retailer 15$1,046 NZD
Retailer 7$1,139 NZD
Retailer 5$1,169 NZD
Retailer 4$1,235 NZD
Retailer 14$1,235 NZD
Retailer 6$1,244 NZD
Retailer 3$1,283 NZD
Retailer 16$1,425 NZD
Retailer 8$1,470 NZD
Retailer 10$1,475 NZD
Retailer 2$1,525 NZD
Retailer 11$1,756 NZD
Retailer 12$2,853 NZD
Retailer 13$3,386 NZD
NZ Jewellers$3,875 NZD

24 data points across 16 retailers

17 retailers$918 NZD to $3,875 NZD

A
Cheapest Retailer
-
$918 NZD
₹49,175 INR
A
Retailer 2
-
$1,046 NZD
HK$4,600 HKD
View
A
Retailer 3
-
$1,139 NZD
$641 USD
View
Final sale: no returns
A
Retailer 4
-
$1,169 NZD
$658 USD
View
A
Retailer 5
-
$1,235 NZD
$695 USD
View
A
Retailer 6
-
$1,235 NZD
$695 USD
View
Retailer 7
-
$1,244 NZD
$700 USD
View
Price last confirmed 15 days ago
A
Retailer 8
-
$1,283 NZD
$722 USD
View
B+
Retailer 9
-
$1,406 NZD
$791 USD
View
B+
Retailer 10
-
$1,425 NZD
$802 USD
View
B+
Retailer 11
-
$1,470 NZD
$827 USD
View
B+
Retailer 12
-
$1,475 NZD
£654 GBP
View
B+
Retailer 13
-
$1,525 NZD
£676 GBP
View
B+
Retailer 14
-
$1,756 NZD
€941 EUR
View
B
Retailer 15
-
$2,853 NZD
£1,264 GBP
View
B
Retailer 16
-
$3,386 NZD
£1,500 GBP
View
Most Expensive
B
NZ Jewellers
0e39f16e-32f4-4a7b-8134-663cf265877c · Nov 3
$3,875 NZD
$2,180 USD
View
16 more retailers have this diamond
Prices start from $918 NZDSave up to $2,957 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
$918 NZD