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Oval|Lab Grown|IGI

1.23ct D VS1 Oval Lab Grown Diamond

ID • D/VS1 • IGI LG667445187

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG667445187

Diamond specifications and retailer prices

From £170 GBP
As of November 4, 2026
Save £728 GBP (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £898 GBP at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.23ct lab-grown oval diamond

This 1.23ct lab-grown oval sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG667445187 or 667445187. Listed at 18 retailers as of November 4, 2026, with prices from £170 to £898, a £728 spread on the same certified stone. Reve Diamonds lists it at £898. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG667445187
Dimensions8.52 × 6.09 × 3.86 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.52 mm6.09 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG667445187
Side View
Table 59.0%Crown 35.3°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £344 GBP|Low: £170 GBP|High: £894 GBP|Avg: £441 GBP|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 14£170 GBP
Retailer 6£189 GBP
Retailer 3£256 GBP
Retailer 10£316 GBP
Retailer 9£326 GBP
Retailer 1£344 GBP
Retailer 4£370 GBP
Retailer 12£462 GBP
Retailer 13£500 GBP
Retailer 11£563 GBP
Retailer 2£598 GBP
Retailer 8£610 GBP
Retailer 5£744 GBP
Retailer 7£882 GBP

43 data points across 14 retailers

18 retailers£170 GBP to £898 GBP

A
Cheapest Retailer
-
£170 GBP
Final sale: no returns
Retailer 2
-
£187 GBP
View
Price last confirmed 44 days ago
Retailer 3
-
£208 GBP
View
Price last confirmed 62 days ago
B+
Retailer 4
-
£256 GBP
View
A
Retailer 5
-
£316 GBP
View
A
Retailer 6
-
£326 GBP
View
A
Retailer 7
-
£344 GBP
View
A
Retailer 8
-
£356 GBP
View
A
Retailer 9
-
£370 GBP
View
Retailer 10
-
£462 GBP
View
Price last confirmed 9 days ago
B+
Retailer 11
-
£494 GBP
View
Retailer 12
-
£500 GBP
View
Price last confirmed 15 days ago
B+
Retailer 13
-
£563 GBP
View
Retailer 14
-
£598 GBP
View
Price last confirmed 31 days ago
B+
Retailer 15
-
£610 GBP
View
B
Retailer 16
-
£647 GBP
View
B
Retailer 17
-
£882 GBP
View
Most Expensive
B
Reve Diamonds
BCEE40DE7 · Nov 4
£898 GBP
$1,213 USD
View
17 more retailers have this diamond
Prices start from £170 GBPSave up to £728 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
1.23ct Oval
£170 GBP