Oval|Natural|GIA

0.51ct G SI2 Oval Natural Diamond

GD • G/SI2 • GIA 6521187954

Certificate GIA 6521187954

Diamond specifications and retailer prices

From $541 USD
As of November 6, 2026
Save $1,489 USD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,030 USD at NZ Jewellers · As of November 5, 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 6521187954. Listed at 10 retailers as of November 5, 2026, with prices from $541 to $2,030, a $1,489 spread on the same certified stone. NZ Jewellers lists it at $2,030. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6521187954
Dimensions6.27 × 4.49 × 2.77 mm
L/W Ratio1.40
Top View
6.27 mm4.49 mm0.51 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6521187954
Side View
Table 59.0%CrownGirdle: UND-UNDPavilionCulet: NoneDepth 61.7%

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 6
Current: $2,030 USD|Low: $496 USD|High: $2,174 USD|Avg: $1,010 USD|-6.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$541 USD
Retailer 7$587 USD
Retailer 5$632 USD
Retailer 9$676 USD
Retailer 8$677 USD
Retailer 2$792 USD
Retailer 4$952 USD
Retailer 3$1,493 USD
Retailer 10$1,543 USD
NZ Jewellers$2,030 USD

43 data points across 10 retailers

10 retailers$541 USD to $2,030 USD

A
Cheapest Retailer
-
$541 USD
Final sale: no returns
B+
Retailer 2
-
$587 USD
View
B+
Retailer 3
-
$632 USD
View
B+
Retailer 4
-
$635 USD
View
B+
Retailer 5
-
$677 USD
View
B
Retailer 6
-
$792 USD
View
B
Retailer 7
-
$952 USD
View
B
Retailer 8
-
$1,493 USD
View
C
Retailer 9
-
$1,543 USD
View
Most Expensive
C
NZ Jewellers
4b51fec2-089f-4d78-b7ed-12faccbf937a · Nov 5
$2,030 USD
View
9 more retailers have this diamond
Prices start from $541 USDSave up to $1,489 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.

A
0.51ct Oval
$541 USD