Oval|Natural|GIA

0.51ct H I1 Oval Natural Diamond

ID • H/I1 • GIA 6312474840

Certificate GIA 6312474840

Diamond specifications and retailer prices

From £420 GBP
$563 USD
As of October 31, 2026
Save £204 GBP (33%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £624 GBP at Yorxs · As of November 2, 2026
View at Yorxs

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 I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6312474840. Listed at 5 retailers as of October 31, 2026, with prices from £420 to £624, a £204 spread on the same certified stone. Yorxs lists it at £624. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
H
Colour
I1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6312474840
Dimensions6.82 × 4.55 × 2.63 mm
L/W Ratio1.50
Top View
6.82 mm4.55 mm0.51 ctH / I1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6312474840
Side View
Table 63.0%CrownGirdlePavilionCulet: NoneDepth 57.9%

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: Oct 31
Current: £420 GBP|Low: £420 GBP|High: £638 GBP|Avg: £541 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Yorxs
November 2, 2026
Retailer 1£420 GBP
Retailer 3£453 GBP
Retailer 4£468 GBP
Retailer 5£469 GBP
Retailer 2£485 GBP
Retailer 7£567 GBP
Retailer 8£572 GBP
Yorxs£624 GBP
Retailer 6£638 GBP

10 data points across 9 retailers

5 retailers£420 GBP to £624 GBP

B+
Cheapest Retailer
-
£420 GBP
$563 USD
B+
Retailer 2
-
£453 GBP
$607 USD
View
B+
Retailer 3
-
£468 GBP
HK$4,900 HKD
View
B+
Retailer 4
-
£485 GBP
$650 USD
View
Most Expensive
B
Yorxs
6BDFE1145 · Nov 2
£624 GBP
€796 EUR
View
4 more retailers have this diamond
Prices start from £420 GBPSave up to £204 GBP

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
£420 GBP