Oval|Natural|IGI

0.51ct H IF Oval Natural Diamond

VG • H/IF • IGI 756599678

Shape and cutting style on the report: Oval brilliant

Certificate IGI 756599678

Diamond specifications and retailer prices

From $422 USD
As of November 4, 2026
Save $2,659 USD (86%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,170 USD at Flawless Fine Jewelry · As of November 2, 2026
View at Flawless Fine Jewelry

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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 756599678. Listed at 14 retailers as of November 2, 2026, with a 630% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
H
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 756599678
Dimensions6.55 × 4.38 × 2.72 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizePointed
Top View
6.55 mm4.38 mm0.51 ctH / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 756599678
Side View
Table 61.0%Crown 41.1°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 62.1%

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 4
Current: $3,170 USD|Low: $421 USD|High: $3,170 USD|Avg: $986 USD
Flawless Fine Jewelry
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
November 5, 2026
Retailer 7$422 USD
Retailer 12$530 USD
Retailer 6$550 USD
Retailer 8$767 USD
Retailer 2$858 USD
Retailer 5$882 USD
Retailer 9$1,623 USD
Retailer 4$1,752 USD
Retailer 3$1,759 USD
Retailer 14$1,820 USD
Retailer 11$1,983 USD
Retailer 10$2,029 USD
Retailer 13$3,081 USD
Flawless Fine Jewelry$3,170 USD

40 data points across 14 retailers

14 retailers$422 USD to $3,081 USD

A
Cheapest Retailer
-
$422 USD
A
Retailer 2
-
$530 USD
View
A
Retailer 3
-
$550 USD
View
A
Retailer 4
-
$767 USD
View
B+
Retailer 5
-
$858 USD
View
B+
Retailer 6
-
$882 USD
View
B
Retailer 7
-
$1,623 USD
View
Final sale: no returns
B
Retailer 8
-
$1,752 USD
View
B
Retailer 9
-
$1,759 USD
View
B
Retailer 10
-
$1,820 USD
View
B
Retailer 11
-
$1,983 USD
View
B
Retailer 12
-
$2,029 USD
View
B
Retailer 13
-
$3,081 USD
View
Most Expensive
Flawless Fine Jewelry
CDDDB4639 · Nov 2
$3,170 USD
£2,496 GBP
View
Price under review
13 more retailers have this diamond
Prices start from $422 USDSave up to $2,659 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.

A
0.51ct Oval
$422 USD