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Oval|Natural|GIA

0.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 7568114831

Certificate GIA 7568114831

Diamond specifications and retailer prices

From $1,090 NZD
HK$4,800 HKD
As of November 1, 2026
Save $3,170 NZD (74%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,260 NZD at NZ Jewellers · As of October 30, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7568114831. Listed at 20 retailers as of October 30, 2026, with prices from $1,090 to $4,260, a $3,170 spread on the same certified stone. NZ Jewellers lists it at $4,260. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.3°
Pavilion angle39.3°
OriginNatural
Grading LabGIA
CertificateGIA 7568114831
Dimensions6.52 × 4.46 × 2.72 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeNone
Top View
6.52 mm4.46 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7568114831
Side View
Table 61.0%Crown 37.3°Girdle: MED-VTKPavilion 39.3°Culet: NoneDepth 61.1%

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 1
Current: $4,260 NZD|Low: $967 NZD|High: $4,395 NZD|Avg: $1,696 NZD|-3.1%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 19$1,090 NZD
Retailer 9$1,136 NZD
Retailer 17$1,144 NZD
Retailer 13$1,162 NZD
Retailer 8$1,207 NZD
Retailer 16$1,231 NZD
Retailer 11$1,247 NZD
Retailer 12$1,295 NZD
Retailer 6$1,338 NZD
Retailer 7$1,407 NZD
Retailer 4$1,419 NZD
Retailer 20$1,553 NZD
Retailer 2$1,619 NZD
Retailer 14$1,668 NZD
Retailer 18$1,749 NZD
Retailer 10$1,897 NZD
Retailer 3$1,926 NZD
Retailer 5$2,097 NZD
Retailer 15$2,488 NZD
NZ Jewellers$4,260 NZD

23 data points across 20 retailers

20 retailers$1,090 NZD to $4,260 NZD

A
Cheapest Retailer
-
$1,090 NZD
HK$4,800 HKD
A
Retailer 2
-
$1,136 NZD
$640 USD
View
Final sale: no returns
A
Retailer 3
-
$1,144 NZD
$645 USD
View
A
Retailer 4
-
$1,162 NZD
$655 USD
View
A
Retailer 5
-
$1,207 NZD
$680 USD
View
A
Retailer 6
-
$1,231 NZD
$694 USD
View
A
Retailer 7
-
$1,247 NZD
$703 USD
View
A
Retailer 8
-
$1,295 NZD
$730 USD
View
A
Retailer 9
-
$1,338 NZD
$754 USD
View
A
Retailer 10
-
$1,407 NZD
$793 USD
View
A
Retailer 11
-
$1,419 NZD
$800 USD
View
B+
Retailer 12
-
$1,553 NZD
$875 USD
View
B+
Retailer 13
-
$1,619 NZD
£718 GBP
View
B+
Retailer 14
-
$1,668 NZD
£740 GBP
View
B+
Retailer 15
-
$1,749 NZD
$986 USD
View
B+
Retailer 16
-
$1,897 NZD
$1,069 USD
View
B+
Retailer 17
-
$1,926 NZD
€1,034 EUR
View
B+
Retailer 18
-
$2,097 NZD
ZAR 19,094 ZAR
View
B
Retailer 19
-
$2,488 NZD
£1,104 GBP
View
Most Expensive
B
NZ Jewellers
196d65e2-211d-456d-b663-762bd9e3de90 · Oct 30
$4,260 NZD
$2,401 USD
View
19 more retailers have this diamond
Prices start from $1,090 NZDSave up to $3,170 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
$1,090 NZD