CaratHunter
Plans
Oval|Natural|GIA

0.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 2568589589

Certificate GIA 2568589589

Diamond specifications and retailer prices

From $731 NZD
As of November 6, 2026
Save $2,538 NZD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,269 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2568589589. Listed at 11 retailers as of November 5, 2026, with prices from $731 to $3,269, a $2,538 spread on the same certified stone. NZ Jewellers lists it at $3,269. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2568589589
Dimensions6.31 × 4.33 × 2.78 mm
L/W Ratio1.46
Girdle conditionThick
Top View
6.31 mm4.33 mm0.51 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2568589589
Side View
Table 61.0%CrownGirdle: MediumPavilionCulet: NoneDepth 64.2%

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: $3,269 NZD|Low: $731 NZD|High: $3,269 NZD|Avg: $1,396 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$731 NZD
Retailer 2$774 NZD
Retailer 6$1,182 NZD
Retailer 4$1,266 NZD
Retailer 3$1,272 NZD
Retailer 8$1,279 NZD
Retailer 9$1,283 NZD
Retailer 7$1,544 NZD
Retailer 5$1,607 NZD
NZ Jewellers$3,269 NZD

10 data points across 10 retailers

11 retailers$731 NZD to $3,269 NZD

A
Cheapest Retailer
-
$731 NZD
Final sale: no returns
A
Retailer 2
-
$774 NZD
View
A
Retailer 3
-
$1,026 NZD
View
B+
Retailer 4
-
$1,182 NZD
View
B+
Retailer 5
-
$1,266 NZD
View
B+
Retailer 6
-
$1,272 NZD
View
B+
Retailer 7
-
$1,279 NZD
View
B+
Retailer 8
-
$1,283 NZD
View
B+
Retailer 9
-
$1,544 NZD
View
B
Retailer 10
-
$1,607 NZD
View
Most Expensive
B
NZ Jewellers
48c9bb09-83af-4f02-ae8f-d0c082692294 · Nov 5
$3,269 NZD
$1,812 USD
View
10 more retailers have this diamond
Prices start from $731 NZDSave up to $2,538 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.

A
0.51ct Oval
$731 NZD