Oval|Natural|GIA

0.51ct G SI2 Oval Natural Diamond

GD • G/SI2 • GIA 2558263828

Certificate GIA 2558263828

Diamond specifications and retailer prices

From $570 USD
As of October 28, 2026
Save $1,370 USD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,940 USD 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 $570 to $1,940, a $1,370 spread on the same certified stone. NZ Jewellers lists it at $1,940. 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
Color
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: $1,940 USD|Low: $523 USD|High: $1,940 USD|Avg: $868 USD
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$570 USD
Retailer 11$585 USD
Retailer 4$619 USD
Retailer 9$630 USD
Retailer 5$666 USD
Retailer 12$666 USD
Retailer 3$714 USD
Retailer 6$743 USD
Retailer 2$758 USD
Retailer 13$779 USD
Retailer 8$908 USD
Retailer 7$1,431 USD
NZ Jewellers$1,940 USD

37 data points across 13 retailers

13 retailers$570 USD to $1,940 USD

B+
Cheapest Retailer
-
$570 USD
Final sale: no returns
B+
Retailer 2
-
$585 USD
View
B+
Retailer 3
-
$619 USD
View
Retailer 4
-
$630 USD
View
Price last confirmed 14 days ago
Retailer 5
-
$666 USD
View
Price last confirmed 7 days ago
Retailer 6
-
$666 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$714 USD
View
B+
Retailer 8
-
$743 USD
£585 GBP
View
B+
Retailer 9
-
$758 USD
£597 GBP
View
B
Retailer 10
-
$779 USD
View
B
Retailer 11
-
$908 USD
€865 EUR
View
Retailer 12
-
$1,431 USD
£1,127 GBP
View
Price last confirmed 7 days ago
Most Expensive
C
NZ Jewellers
829c43e8-a0c7-4158-abdc-c349acef607f · Oct 27
$1,940 USD
View
12 more retailers have this diamond
Prices start from $570 USDSave up to $1,370 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.

B+
0.51ct Oval
$570 USD