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Oval|Natural|GIA

0.51ct G SI2 Oval Natural Diamond

GD • G/SI2 • GIA 7566348128

Certificate GIA 7566348128

Diamond specifications and retailer prices

From £539 GBP
As of November 5, 2026
Save £527 GBP (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,685 GBP at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7566348128. Listed at 11 retailers as of November 4, 2026, with a 98% 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
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7566348128
Dimensions6.44 × 4.33 × 2.79 mm
L/W Ratio1.49
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
6.44 mm4.33 mm0.51 ctG / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7566348128
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 64.5%

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 5
Current: £1,685 GBP|Low: £392 GBP|High: £1,685 GBP|Avg: £740 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10£392 GBP
Retailer 6£539 GBP
Retailer 9£560 GBP
Retailer 8£650 GBP
Retailer 3£694 GBP
Retailer 5£702 GBP
Retailer 7£743 GBP
Retailer 2£821 GBP
Retailer 4£1,066 GBP
Diamond Exchange Canada£1,685 GBP

19 data points across 10 retailers

11 retailers£539 GBP to £1,066 GBP

Retailer 1
-
£392 GBP
Price last confirmed 32 days ago
B+
Retailer 2
-
£539 GBP
View
B+
Retailer 3
-
£544 GBP
View
B+
Retailer 4
-
£560 GBP
View
B
Retailer 5
-
£650 GBP
View
B
Retailer 6
-
£694 GBP
View
B
Retailer 7
-
£702 GBP
View
B
Retailer 8
-
£743 GBP
View
B
Retailer 9
-
£821 GBP
View
C
Retailer 10
-
£1,066 GBP
View
Most Expensive
Diamond Exchange Canada
1996190840 · Nov 5
£1,685 GBP
CA$3,133 CAD
View
Price under review
10 more retailers have this diamond
Prices start from £539 GBPSave up to £527 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
£539 GBP