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Oval|Natural|GIA

0.51ct G SI2 Oval Natural Diamond

GD • G/SI2 • GIA 7566348128

Certificate GIA 7566348128

Diamond specifications and retailer prices

From $1,279 NZD
$721 USD
As of November 1, 2026
Save $1,258 NZD (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,003 NZD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7566348128. Listed at 11 retailers as of November 1, 2026, with a 98% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7566348128
Dimensions6.44 × 4.33 × 2.79 mm
L/W Ratio1.49
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
6.44 mm4.33 mm0.51 ctG / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7566348128
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,003 NZD|Low: $932 NZD|High: $4,003 NZD|Avg: $1,701 NZD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10$932 NZD
Retailer 6$1,279 NZD
Retailer 9$1,331 NZD
Retailer 8$1,544 NZD
Retailer 3$1,651 NZD
Retailer 5$1,668 NZD
Retailer 7$1,764 NZD
Retailer 2$1,960 NZD
Retailer 4$2,537 NZD
Diamond Exchange Canada$4,003 NZD

15 data points across 10 retailers

11 retailers$1,279 NZD to $2,537 NZD

Retailer 1
-
$932 NZD
$525 USD
Price last confirmed 28 days ago
B+
Retailer 2
-
$1,279 NZD
$721 USD
View
B+
Retailer 3
-
$1,292 NZD
A$1,120 AUD
View
B+
Retailer 4
-
$1,331 NZD
$750 USD
View
B
Retailer 5
-
$1,544 NZD
$870 USD
View
B
Retailer 6
-
$1,651 NZD
£733 GBP
View
B
Retailer 7
-
$1,668 NZD
$940 USD
View
B
Retailer 8
-
$1,764 NZD
$994 USD
View
B
Retailer 9
-
$1,960 NZD
€1,052 EUR
View
C
Retailer 10
-
$2,537 NZD
£1,126 GBP
View
Most Expensive
Diamond Exchange Canada
1996190840 · Oct 30
$4,003 NZD
CA$3,133 CAD
View
Price under review
10 more retailers have this diamond
Prices start from $1,279 NZDSave up to $1,258 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.

B+
0.51ct Oval
$1,279 NZD