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Round|Lab Grown|IGI

1.23ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG845638223

Certificate IGI LG845638223

Diamond specifications and retailer prices

From £152 GBP
As of November 5, 2026
Save £386 GBP (72%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £538 GBP at With Clarity · As of November 5, 2026
View at With Clarity

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG845638223 or 845638223. Listed at 4 retailers as of November 5, 2026, with prices from £152 to £538, a £386 spread on the same certified stone. With Clarity lists it at £538. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG845638223
Dimensions6.86 × 6.90 × 4.23 mm
L/W Ratio1.01
Top View
6.86 mm6.90 mm1.23 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845638223
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NoneDepth 61.4%

Caratlytics Score

How it works →
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 5
Current: £152 GBP|Low: £152 GBP|High: £538 GBP|Avg: £377 GBP
Retailer 1
Retailer 2
Retailer 3
With Clarity
November 5, 2026
Retailer 1£152 GBP
Retailer 3£288 GBP
Retailer 2£529 GBP
With Clarity£538 GBP

1 data point across 4 retailers

4 retailers£152 GBP to £538 GBP

A
Cheapest Retailer
-
£152 GBP
A
Retailer 2
-
£288 GBP
View
B
Retailer 3
-
£529 GBP
View
Most Expensive
B
With Clarity
845638223 · Nov 5
£538 GBP
$726 USD
View
3 more retailers have this diamond
Prices start from £152 GBPSave up to £386 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 Round
£152 GBP