Oval|Natural|GIA

0.51ct F SI2 Oval Natural Diamond

GD • F/SI2 • GIA 2536781518

Certificate GIA 2536781518

Diamond specifications and retailer prices

From £462 GBP
As of November 6, 2026
Save £1,109 GBP (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,570 GBP 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 F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2536781518. Listed at 13 retailers as of November 5, 2026, with prices from £462 to £1,570, a £1,109 spread on the same certified stone. NZ Jewellers lists it at £1,570. 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
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2536781518
Dimensions6.51 × 4.65 × 2.67 mm
L/W Ratio1.40
Top View
6.51 mm4.65 mm0.51 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2536781518
Side View
Table 63.0%CrownGirdlePavilionCulet: NoneDepth 57.4%

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: £1,570 GBP|Low: £462 GBP|High: £1,570 GBP|Avg: £700 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3£462 GBP
Retailer 7£487 GBP
Retailer 9£501 GBP
Retailer 10£501 GBP
Retailer 8£520 GBP
Retailer 11£578 GBP
Retailer 2£595 GBP
Retailer 4£607 GBP
Retailer 5£713 GBP
Retailer 6£1,157 GBP
NZ Jewellers£1,570 GBP

42 data points across 11 retailers

13 retailers£462 GBP to £1,570 GBP

B+
Cheapest Retailer
-
£462 GBP
Final sale: no returns
B+
Retailer 2
-
£487 GBP
View
B+
Retailer 3
-
£501 GBP
View
Retailer 4
-
£501 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£520 GBP
View
B
Retailer 6
-
£578 GBP
View
B+
Retailer 7
-
£595 GBP
View
B
Retailer 8
-
£598 GBP
View
B
Retailer 9
-
£599 GBP
View
B
Retailer 10
-
£607 GBP
View
B
Retailer 11
-
£713 GBP
View
B
Retailer 12
-
£1,157 GBP
View
Most Expensive
C
NZ Jewellers
25b15ec1-5bc2-4963-9c68-84a4af09dab0 · Nov 5
£1,570 GBP
$2,102 USD
View
12 more retailers have this diamond
Prices start from £462 GBPSave up to £1,109 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
£462 GBP