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Round|Lab Grown|IGI

1.23ct G VVS1 Round Lab Grown Diamond

EX • G/VVS1 • IGI LG837621061

Shape and cutting style on the report: Round brilliant

Certificate IGI LG837621061

Diamond specifications and retailer prices

From £130 GBP
As of November 3, 2026
Save £880 GBP (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,010 GBP at Yadav Diamonds · As of November 4, 2026
View at Yadav Diamonds

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 LG837621061 or 837621061. Listed at 22 retailers as of November 3, 2026, with prices from £130 to £1,010, a £880 spread on the same certified stone. Yadav Diamonds lists it at £1,010. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837621061
Dimensions6.97 × 7.02 × 4.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.97 mm7.02 mm1.23 ctG / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837621061
Side View
Table 59.0%Crown 32.8°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 59.1%

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 3
Current: £284 GBP|Low: £124 GBP|High: £1,010 GBP|Avg: £392 GBP|+3.5%
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
Yadav Diamonds
November 5, 2026
Retailer 2£130 GBP
Retailer 3£161 GBP
Retailer 5£180 GBP
Retailer 4£216 GBP
Retailer 7£267 GBP
Retailer 9£272 GBP
Retailer 11£277 GBP
Retailer 1£284 GBP
Retailer 10£391 GBP
Retailer 12£400 GBP
Retailer 8£433 GBP
Retailer 13£563 GBP
Retailer 6£748 GBP
Yadav Diamonds£1,010 GBP

42 data points across 14 retailers

22 retailers£130 GBP to £1,010 GBP

A
Cheapest Retailer
-
£130 GBP
A
Retailer 2
-
£150 GBP
View
A
Retailer 3
-
£161 GBP
View
Retailer 4
-
£161 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£180 GBP
View
B+
Retailer 6
-
£216 GBP
View
A
Retailer 7
-
£267 GBP
View
A
Retailer 8
-
£272 GBP
View
A
Retailer 9
-
£277 GBP
View
A
Retailer 10
-
£284 GBP
View
B+
Retailer 11
-
£335 GBP
View
B+
Retailer 12
-
£345 GBP
View
B+
Retailer 13
-
£391 GBP
View
B+
Retailer 14
-
£400 GBP
View
B+
Retailer 15
-
£433 GBP
View
B
Retailer 16
-
£516 GBP
View
B
Retailer 17
-
£533 GBP
View
B
Retailer 18
-
£541 GBP
View
B
Retailer 19
-
£556 GBP
View
B
Retailer 20
-
£563 GBP
View
B
Retailer 21
-
£748 GBP
View
Most Expensive
B
Yadav Diamonds
13265024 · Nov 4
£1,010 GBP
$1,363 USD
View
21 more retailers have this diamond
Prices start from £130 GBPSave up to £880 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
£130 GBP