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Oval|Natural|GIA

0.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 3495166566

Certificate GIA 3495166566

Diamond specifications and retailer prices

From $1,252 NZD
As of November 6, 2026
Save $1,492 NZD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,699 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 3495166566. Listed at 20 retailers as of November 2, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3495166566
Dimensions6.30 × 4.55 × 2.82 mm
L/W Ratio1.38
Top View
6.30 mm4.55 mm0.51 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3495166566
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.9%

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: $1,775 NZD|Low: $1,248 NZD|High: $2,778 NZD|Avg: $1,749 NZD|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 7$1,248 NZD
Retailer 2$1,252 NZD
Retailer 12$1,353 NZD
Retailer 11$1,378 NZD
Retailer 5$1,385 NZD
Retailer 4$1,411 NZD
Retailer 13$1,669 NZD
Retailer 8$1,723 NZD
Retailer 1$1,775 NZD
Retailer 10$2,114 NZD
Retailer 3$2,253 NZD
Retailer 6$2,313 NZD
Retailer 9$2,744 NZD

44 data points across 13 retailers

20 retailers$1,252 NZD to $2,744 NZD

Retailer 1
-
$1,246 NZD
Price last confirmed 9 days ago
B+
Retailer 2
-
$1,252 NZD
View
Final sale: no returns
B+
Retailer 3
-
$1,353 NZD
View
Retailer 4
-
$1,358 NZD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,358 NZD
View
B+
Retailer 6
-
$1,378 NZD
View
B+
Retailer 7
-
$1,385 NZD
View
B+
Retailer 8
-
$1,411 NZD
View
B+
Retailer 9
-
$1,566 NZD
View
B
Retailer 10
-
$1,669 NZD
View
B
Retailer 11
-
$1,723 NZD
View
B
Retailer 12
-
$1,775 NZD
View
B
Retailer 13
-
$2,055 NZD
View
B
Retailer 14
-
$2,103 NZD
View
B
Retailer 15
-
$2,114 NZD
View
Retailer 16
-
$2,253 NZD
View
Price last confirmed 32 days ago
B
Retailer 17
-
$2,313 NZD
View
B
Retailer 18
-
$2,410 NZD
View
B
Retailer 19
-
$2,744 NZD
View
Most Expensive
NZ Jewellers
6fb2c97c-0dc9-4bdf-bb29-cdbbde57e802 · Nov 5
$4,699 NZD
$2,605 USD
View
Price under review
19 more retailers have this diamond
Prices start from $1,252 NZDSave up to $1,492 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
$1,252 NZD