Oval|Natural|GIA

0.51ct D VS1 Oval Natural Diamond

GD • D/VS1 • GIA 1509440320

Certificate GIA 1509440320

Diamond specifications and retailer prices

From £836 GBP
$1,120 USD
As of October 28, 2026
Save £1,060 GBP (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,511 GBP at NZ Jewellers · As of October 30, 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1509440320. Listed at 23 retailers as of October 28, 2026, with a 127% 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
D
Colour
VS1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1509440320
Dimensions6.55 × 4.61 × 2.64 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Needle, Feather
Top View
6.55 mm4.61 mm0.51 ctD / VS1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1509440320
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.2%

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 28
Current: £1,147 GBP|Low: £836 GBP|High: £1,909 GBP|Avg: £1,311 GBP|+4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 6£836 GBP
Retailer 8£861 GBP
Retailer 10£933 GBP
Retailer 7£1,022 GBP
Retailer 1£1,147 GBP
Retailer 4£1,335 GBP
Retailer 9£1,343 GBP
Retailer 5£1,585 GBP
Retailer 2£1,854 GBP
Retailer 3£1,896 GBP

42 data points across 10 retailers

23 retailers£836 GBP to £1,896 GBP

B+
Cheapest Retailer
-
£836 GBP
$1,120 USD
B+
Retailer 2
-
£861 GBP
$1,153 USD
View
Final sale: no returns
B+
Retailer 3
-
£893 GBP
$1,197 USD
View
B+
Retailer 4
-
£903 GBP
$1,210 USD
View
B+
Retailer 5
-
£916 GBP
$1,227 USD
View
B+
Retailer 6
-
£933 GBP
$1,250 USD
View
B+
Retailer 7
-
£933 GBP
$1,250 USD
View
B
Retailer 8
-
£969 GBP
$1,298 USD
View
B
Retailer 9
-
£1,022 GBP
$1,370 USD
View
B
Retailer 10
-
£1,076 GBP
$1,442 USD
View
B
Retailer 11
-
£1,119 GBP
$1,500 USD
View
B
Retailer 12
-
£1,119 GBP
$1,500 USD
View
B
Retailer 13
-
£1,147 GBP
View
B
Retailer 14
-
£1,157 GBP
$1,550 USD
View
B
Retailer 15
-
£1,167 GBP
$1,564 USD
View
B
Retailer 16
-
£1,292 GBP
$1,732 USD
View
B
Retailer 17
-
£1,335 GBP
€1,703 EUR
View
Retailer 18
-
£1,343 GBP
A$2,769 AUD
View
Price last confirmed 25 days ago
B
Retailer 19
-
£1,585 GBP
ZAR 34,318 ZAR
View
B
Retailer 20
-
£1,681 GBP
CA$3,128 CAD
View
B
Retailer 21
-
£1,854 GBP
View
B
Retailer 22
-
£1,896 GBP
View
Most Expensive
NZ Jewellers
9b8e3c4d-435d-4935-919f-5de14ed1b4db · Oct 30
£2,511 GBP
$3,365 USD
View
Price under review
22 more retailers have this diamond
Prices start from £836 GBPSave up to £1,060 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
£836 GBP