Oval|Natural|GIA

0.51ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 3495166566

Certificate GIA 3495166566

Diamond specifications and retailer prices

From $694 USD
As of November 6, 2026
Save $827 USD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,605 USD 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
Color
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: $984 USD|Low: $692 USD|High: $1,540 USD|Avg: $970 USD|+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$692 USD
Retailer 2$694 USD
Retailer 12$750 USD
Retailer 11$764 USD
Retailer 5$768 USD
Retailer 4$782 USD
Retailer 13$925 USD
Retailer 8$955 USD
Retailer 1$984 USD
Retailer 10$1,172 USD
Retailer 3$1,249 USD
Retailer 6$1,282 USD
Retailer 9$1,521 USD

44 data points across 13 retailers

20 retailers$694 USD to $1,521 USD

Retailer 1
-
$691 USD
Price last confirmed 9 days ago
B+
Retailer 2
-
$694 USD
View
Final sale: no returns
B+
Retailer 3
-
$750 USD
View
Retailer 4
-
$753 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$753 USD
View
B+
Retailer 6
-
$764 USD
View
B+
Retailer 7
-
$768 USD
View
B+
Retailer 8
-
$782 USD
View
B+
Retailer 9
-
$868 USD
View
B
Retailer 10
-
$925 USD
View
B
Retailer 11
-
$955 USD
View
B
Retailer 12
-
$984 USD
View
B
Retailer 13
-
$1,139 USD
View
B
Retailer 14
-
$1,166 USD
View
B
Retailer 15
-
$1,172 USD
View
Retailer 16
-
$1,249 USD
View
Price last confirmed 32 days ago
B
Retailer 17
-
$1,282 USD
View
B
Retailer 18
-
$1,336 USD
View
B
Retailer 19
-
$1,521 USD
View
Most Expensive
NZ Jewellers
6fb2c97c-0dc9-4bdf-bb29-cdbbde57e802 · Nov 5
$2,605 USD
View
Price under review
19 more retailers have this diamond
Prices start from $694 USDSave up to $827 USD

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
$694 USD