Oval|Lab Grown|IGI

1.23ct D VS1 Oval Lab Grown Diamond

ID • D/VS1 • IGI LG843696026

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG843696026

Diamond specifications and retailer prices

From £190 GBP
As of November 4, 2026
Save £693 GBP (79%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,292 GBP at Flawless Fine Jewelry · As of October 21, 2026
View at Flawless Fine Jewelry

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 LG843696026 or 843696026. Listed at 19 retailers as of November 4, 2026, with a 365% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle32.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843696026
Dimensions8.49 × 6.08 × 3.77 mm
L/W Ratio1.40
Girdle conditionFaceted
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
8.49 mm6.08 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843696026
Side View
Table 58.0%Crown 32.7°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.0%

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: £2,292 GBP|Low: £171 GBP|High: £3,564 GBP|Avg: £815 GBP
Flawless Fine Jewelry
Retailer 2
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November 5, 2026
Retailer 7£171 GBP
Retailer 10£190 GBP
Retailer 18£190 GBP
Retailer 14£252 GBP
Retailer 20£320 GBP
Retailer 3£327 GBP
Retailer 15£332 GBP
Retailer 2£355 GBP
Retailer 6£356 GBP
Retailer 16£462 GBP
Retailer 17£598 GBP
Retailer 5£610 GBP
Retailer 8£647 GBP
Retailer 19£667 GBP
Retailer 9£677 GBP
Retailer 11£785 GBP
Retailer 13£882 GBP
Retailer 4£899 GBP
Retailer 12£959 GBP
Flawless Fine Jewelry£2,292 GBP

13 data points across 20 retailers

19 retailers£190 GBP to £882 GBP

Retailer 1
-
£190 GBP
Price last confirmed 11 days ago
A
Retailer 2
-
£190 GBP
View
A
Retailer 3
-
£252 GBP
View
Retailer 4
-
£320 GBP
View
Price last confirmed 13 days ago
Retailer 5
-
£327 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£332 GBP
View
A
Retailer 7
-
£355 GBP
View
Retailer 8
-
£356 GBP
View
Price last confirmed 9 days ago
Retailer 9
-
£462 GBP
View
Price last confirmed 9 days ago
Retailer 10
-
£598 GBP
View
Price last confirmed 11 days ago
Retailer 11
-
£610 GBP
View
Price last confirmed 10 days ago
Retailer 12
-
£647 GBP
View
Price last confirmed 8 days ago
Retailer 13
-
£667 GBP
View
Price last confirmed 8 days ago
B+
Retailer 14
-
£677 GBP
View
Retailer 15
-
£785 GBP
View
Price last confirmed 15 days ago
B
Retailer 16
-
£882 GBP
View
Retailer 17
-
£899 GBP
View
Price last confirmed 8 days ago
Retailer 18
-
£959 GBP
View
Price last confirmed 14 days ago
Most Expensive
Flawless Fine Jewelry
D241EB8C2 · Oct 21
£2,292 GBP
View
Price under review
18 more retailers have this diamond
Prices start from £190 GBPSave up to £693 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
£190 GBP