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Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 1568415063

Certificate GIA 1568415063

Diamond specifications and retailer prices

From $926 NZD
$521 USD
As of November 2, 2026
Save $1,478 NZD (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,114 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 1568415063. Listed at 11 retailers as of November 2, 2026, with a 160% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1568415063
Dimensions7.96 × 4.17 × 2.63 mm
L/W Ratio1.91
Girdle conditionVery Thick
Top View
7.96 mm4.17 mm0.51 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1568415063
Side View
Table 56.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 63.0%

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: $4,114 NZD|Low: $926 NZD|High: $4,114 NZD|Avg: $1,750 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 10$926 NZD
Retailer 3$985 NZD
Retailer 7$1,200 NZD
Retailer 8$1,333 NZD
Retailer 9$1,547 NZD
Retailer 4$1,567 NZD
Retailer 2$1,575 NZD
Retailer 6$1,861 NZD
Retailer 5$2,404 NZD
NZ Jewellers$4,114 NZD

30 data points across 10 retailers

11 retailers$926 NZD to $2,404 NZD

A
Cheapest Retailer
-
$926 NZD
$521 USD
Final sale: no returns
A
Retailer 2
-
$985 NZD
₹52,782 INR
View
Retailer 3
-
$1,200 NZD
$675 USD
View
Price last confirmed 15 days ago
B+
Retailer 4
-
$1,333 NZD
$750 USD
View
B+
Retailer 5
-
$1,509 NZD
$849 USD
View
B+
Retailer 6
-
$1,547 NZD
$871 USD
View
B+
Retailer 7
-
$1,567 NZD
£694 GBP
View
B+
Retailer 8
-
$1,575 NZD
£698 GBP
View
B+
Retailer 9
-
$1,861 NZD
€997 EUR
View
B
Retailer 10
-
$2,404 NZD
£1,065 GBP
View
Most Expensive
NZ Jewellers
90ecfe96-ec6a-4556-8cca-2b43e5702c51 · Nov 3
$4,114 NZD
$2,315 USD
View
Price under review
10 more retailers have this diamond
Prices start from $926 NZDSave up to $1,478 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
$926 NZD