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Oval|Lab Grown|GIA

1.20ct D VVS1 Oval Lab Grown Diamond

ID • D/VVS1 • GIA 6491734764

Certificate GIA 6491734764

Diamond specifications and retailer prices

From £233 GBP
$309 USD
As of October 26, 2026
Save £1,205 GBP (84%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,437 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.2ct lab-grown oval diamond

This 1.2ct lab-grown oval sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6491734764. Listed at 6 retailers as of October 26, 2026, with prices from £233 to £1,437, a £1,205 spread on the same certified stone. Brilliant Earth lists it at £1,437. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Colour
VVS1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6491734764
Dimensions8.97 × 5.89 × 3.65 mm
L/W Ratio1.52
Girdle conditionFaceted
Cert comments
This is a man-made diamond.
Key to symbols
Growth Remnant, Feather
Top View
8.97 mm5.89 mm1.20 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6491734764
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: £1,437 GBP|Low: £227 GBP|High: £1,483 GBP|Avg: £712 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 5£233 GBP
Retailer 4£270 GBP
Retailer 2£289 GBP
Retailer 6£996 GBP
Retailer 3£1,024 GBP
Brilliant Earth£1,437 GBP

20 data points across 6 retailers

6 retailers£233 GBP to £1,437 GBP

A
Cheapest Retailer
-
£233 GBP
$309 USD
A
Retailer 2
-
£270 GBP
$359 USD
View
A
Retailer 3
-
£289 GBP
$384 USD
View
B
Retailer 4
-
£996 GBP
$1,323 USD
View
B
Retailer 5
-
£1,024 GBP
$1,361 USD
View
Most Expensive
B
Brilliant Earth
10746237Y · Oct 28
£1,437 GBP
$1,910 USD
View
5 more retailers have this diamond
Prices start from £233 GBPSave up to £1,205 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.

A
1.20ct Oval
£233 GBP