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Oval|Natural|GIA

0.51ct G SI2 Oval Natural Diamond

GD • G/SI2 • GIA 2558263828

Certificate GIA 2558263828

Diamond specifications and retailer prices

From $1,011 NZD
$570 USD
As of October 28, 2026
Save $2,431 NZD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,442 NZD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

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 2558263828. Listed at 13 retailers as of October 27, 2026, with prices from $1,011 to $3,442, a $2,431 spread on the same certified stone. NZ Jewellers lists it at $3,442. 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 2558263828
Dimensions6.58 × 4.42 × 2.67 mm
L/W Ratio1.49
Key to symbols
Feather, Cloud, Crystal
Top View
6.58 mm4.42 mm0.51 ctG / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558263828
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 60.4%

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: Oct 28
Current: $3,442 NZD|Low: $928 NZD|High: $3,442 NZD|Avg: $1,539 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
October 28, 2026
Retailer 10$1,011 NZD
Retailer 11$1,038 NZD
Retailer 4$1,098 NZD
Retailer 9$1,118 NZD
Retailer 5$1,182 NZD
Retailer 12$1,182 NZD
Retailer 3$1,267 NZD
Retailer 6$1,319 NZD
Retailer 2$1,344 NZD
Retailer 13$1,382 NZD
Retailer 8$1,612 NZD
Retailer 7$2,540 NZD
NZ Jewellers$3,442 NZD

37 data points across 13 retailers

13 retailers$1,011 NZD to $3,442 NZD

B+
Cheapest Retailer
-
$1,011 NZD
$570 USD
Final sale: no returns
B+
Retailer 2
-
$1,038 NZD
$585 USD
View
B+
Retailer 3
-
$1,098 NZD
$619 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$1,118 NZD
$630 USD
View
Price last confirmed 14 days ago
Retailer 5
-
$1,182 NZD
$666 USD
View
Price last confirmed 7 days ago
Retailer 6
-
$1,182 NZD
$666 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$1,267 NZD
$714 USD
View
B+
Retailer 8
-
$1,319 NZD
£585 GBP
View
B+
Retailer 9
-
$1,344 NZD
£597 GBP
View
B
Retailer 10
-
$1,382 NZD
$779 USD
View
B
Retailer 11
-
$1,612 NZD
€865 EUR
View
Retailer 12
-
$2,540 NZD
£1,127 GBP
View
Price last confirmed 8 days ago
Most Expensive
C
NZ Jewellers
829c43e8-a0c7-4158-abdc-c349acef607f · Oct 27
$3,442 NZD
$1,940 USD
View
12 more retailers have this diamond
Prices start from $1,011 NZDSave up to $2,431 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
$1,011 NZD