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Oval|Natural|GIA

0.51ct G SI1 Oval Natural Diamond

GD • G/SI1 • GIA 1557236320

Certificate GIA 1557236320

Diamond specifications and retailer prices

From $1,138 NZD
As of November 6, 2026
Save $2,733 NZD (71%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,871 NZD 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1557236320. Listed at 16 retailers as of November 5, 2026, with prices from $1,138 to $3,871, a $2,733 spread on the same certified stone. NZ Jewellers lists it at $3,871. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557236320
Dimensions6.54 × 4.42 × 2.77 mm
L/W Ratio1.48
Key to symbols
Cloud, Crystal
Top View
6.54 mm4.42 mm0.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557236320
Side View
Table 60.0%CrownGirdle: Sli. Thick - ThickPavilionCulet: NoneDepth 62.8%

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 6
Current: $3,871 NZD|Low: $1,044 NZD|High: $3,871 NZD|Avg: $1,747 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
Retailer 14
November 6, 2026
Retailer 4$1,138 NZD
Retailer 10$1,200 NZD
Retailer 13$1,234 NZD
Retailer 14$1,234 NZD
Retailer 12$1,283 NZD
Retailer 3$1,425 NZD
Retailer 2$1,506 NZD
Retailer 7$1,508 NZD
Retailer 6$1,560 NZD
Retailer 11$1,757 NZD
Retailer 5$1,856 NZD
Retailer 8$1,905 NZD
Retailer 9$2,847 NZD
NZ Jewellers$3,871 NZD

33 data points across 14 retailers

16 retailers$1,138 NZD to $3,871 NZD

B+
Cheapest Retailer
-
$1,138 NZD
Final sale: no returns
B+
Retailer 2
-
$1,200 NZD
View
Retailer 3
-
$1,234 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$1,234 NZD
View
B+
Retailer 5
-
$1,283 NZD
View
B+
Retailer 6
-
$1,425 NZD
View
B
Retailer 7
-
$1,461 NZD
View
B
Retailer 8
-
$1,472 NZD
View
B+
Retailer 9
-
$1,506 NZD
View
B
Retailer 10
-
$1,508 NZD
View
B
Retailer 11
-
$1,560 NZD
View
B
Retailer 12
-
$1,757 NZD
View
Retailer 13
-
$1,856 NZD
View
Price last confirmed 32 days ago
B
Retailer 14
-
$1,905 NZD
View
B
Retailer 15
-
$2,847 NZD
View
Most Expensive
C
NZ Jewellers
33e7d847-8cda-4ced-9bd2-7b92ebc57310 · Nov 5
$3,871 NZD
$2,146 USD
View
15 more retailers have this diamond
Prices start from $1,138 NZDSave up to $2,733 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
$1,138 NZD