Oval|Natural|GIA

20.42ct D VS1 Oval Natural Diamond

VG • D/VS1 • GIA 5221963351

Certificate GIA 5221963351

Diamond specifications and retailer prices

From £1,225,226 GBP
$1,631,612 USD
As of October 29, 2026
Save £306,307 GBP (20%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,531,534 GBP at Aurelinne · As of October 27, 2026
View at Aurelinne

About this 20.42ct natural oval diamond

This 20.42ct natural oval sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5221963351. Listed at 10 retailers as of October 27, 2026, with prices from £1,225,226 to £1,531,534, a £306,307 spread on the same certified stone. Aurelinne lists it at £1,531,534. 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

20.42
Carat
D
Colour
VS1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5221963351
Dimensions20.81 × 15.04 × 10.10 mm
L/W Ratio1.38
Top View
20.81 mm15.04 mm20.42 ctD / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5221963351
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.2%

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 29
Current: £1,531,534 GBP|Low: £806,926 GBP|High: £1,531,534 GBP|Avg: £1,225,541 GBP
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 12, 2026
Retailer 3£806,926 GBP
Retailer 11£832,140 GBP
Retailer 5£1,138,772 GBP
Retailer 4£1,225,226 GBP
Retailer 9£1,255,032 GBP
Retailer 10£1,282,635 GBP
Retailer 7£1,284,720 GBP
Retailer 6£1,292,685 GBP
Retailer 2£1,361,363 GBP
Retailer 8£1,418,086 GBP
Aurelinne£1,531,534 GBP

11 data points across 11 retailers

10 retailers£1,225,226 GBP to £1,531,534 GBP

Retailer 1
-
£1,138,772 GBP
A$2,333,049 AUD
Price last confirmed 30 days ago
B+
Retailer 2
-
£1,225,226 GBP
$1,631,612 USD
View
Final sale: no returns
Retailer 3
-
£1,284,720 GBP
$1,710,838 USD
View
Price last confirmed 29 days ago
B+
Retailer 4
-
£1,284,720 GBP
$1,710,838 USD
View
B+
Retailer 5
-
£1,292,685 GBP
$1,721,445 USD
View
B+
Retailer 6
-
£1,361,363 GBP
$1,812,903 USD
View
Retailer 7
-
£1,418,086 GBP
$1,888,440 USD
View
Price last confirmed 30 days ago
Retailer 8
-
£1,474,810 GBP
$1,963,978 USD
View
Price last confirmed 31 days ago
Retailer 9
-
£1,531,534 GBP
$2,039,516 USD
View
Price last confirmed 31 days ago
Most Expensive
B+
Aurelinne
9dec36eb-4921-4baf-8d47-f54376de1bf2 · Oct 27
£1,531,534 GBP
$2,039,516 USD
View
9 more retailers have this diamond
Prices start from £1,225,226 GBPSave up to £306,307 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+
20.42ct Oval
£1,225,226 GBP