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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 $1,010 AUD
As of November 6, 2026
Save $1,192 AUD (54%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,791 AUD at NZ Jewellers · As of November 7, 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 24 retailers as of November 6, 2026, with a 118% 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: $1,451 AUD|Low: $1,007 AUD|High: $2,241 AUD|Avg: $1,456 AUD
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
Retailer 14
Retailer 15
Retailer 16
November 7, 2026
Retailer 10$1,007 AUD
Retailer 6$1,010 AUD
Retailer 4$1,092 AUD
Retailer 3$1,112 AUD
Retailer 8$1,138 AUD
Retailer 9$1,281 AUD
Retailer 5$1,346 AUD
Retailer 16$1,390 AUD
Retailer 12$1,391 AUD
Retailer 14$1,441 AUD
Retailer 1$1,451 AUD
Retailer 2$1,706 AUD
Retailer 11$1,720 AUD
Retailer 7$1,818 AUD
Retailer 15$1,866 AUD
Retailer 13$2,202 AUD

42 data points across 16 retailers

24 retailers$1,010 AUD to $2,202 AUD

Retailer 1
-
$1,006 AUD
Price last confirmed 10 days ago
B+
Retailer 2
-
$1,010 AUD
View
Final sale: no returns
B+
Retailer 3
-
$1,092 AUD
View
B+
Retailer 4
-
$1,096 AUD
View
B+
Retailer 5
-
$1,096 AUD
View
B+
Retailer 6
-
$1,112 AUD
View
B+
Retailer 7
-
$1,118 AUD
View
B+
Retailer 8
-
$1,138 AUD
View
B+
Retailer 9
-
$1,263 AUD
View
B
Retailer 10
-
$1,281 AUD
View
B
Retailer 11
-
$1,346 AUD
View
B
Retailer 12
-
$1,390 AUD
View
B
Retailer 13
-
$1,391 AUD
View
B
Retailer 14
-
$1,441 AUD
View
B
Retailer 15
-
$1,451 AUD
View
B
Retailer 16
-
$1,658 AUD
View
B
Retailer 17
-
$1,697 AUD
View
B
Retailer 18
-
$1,706 AUD
View
B
Retailer 19
-
$1,720 AUD
View
Retailer 20
-
$1,818 AUD
View
Price last confirmed 33 days ago
B
Retailer 21
-
$1,866 AUD
View
B
Retailer 22
-
$1,944 AUD
View
B
Retailer 23
-
$2,202 AUD
View
Most Expensive
NZ Jewellers
6fb2c97c-0dc9-4bdf-bb29-cdbbde57e802 · Nov 7
$3,791 AUD
$2,605 USD
View
Price under review
23 more retailers have this diamond
Prices start from $1,010 AUDSave up to $1,192 AUD

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
$1,010 AUD