CaratHunter
Plans
Round|Lab Grown|IGI

1.23ct H VS2 Round Lab Grown Diamond

EX • H/VS2 • IGI LG781609788

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781609788

Diamond specifications and retailer prices

From £149 GBP
$199 USD
As of October 29, 2026
Save £717 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £865 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG781609788 or 781609788. Listed at 17 retailers as of October 29, 2026, with prices from £149 to £865, a £717 spread on the same certified stone. MOH London lists it at £865. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
H
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781609788
Dimensions6.82 × 6.84 × 4.21 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.82 mm6.84 mm1.23 ctH / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781609788
Side View
Table 60.0%Crown 34.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.7%

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 29
Current: £865 GBP|Low: £97 GBP|High: £871 GBP|Avg: £423 GBP|-0.5%
MOH London
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
Retailer 15
October 31, 2026
Retailer 6£97 GBP
Retailer 11£149 GBP
Retailer 13£184 GBP
Retailer 5£319 GBP
Retailer 14£319 GBP
Retailer 4£323 GBP
Retailer 2£337 GBP
Retailer 15£367 GBP
Retailer 9£373 GBP
Retailer 12£425 GBP
Retailer 10£473 GBP
Retailer 7£632 GBP
Retailer 3£662 GBP
Retailer 8£717 GBP
MOH London£865 GBP

23 data points across 15 retailers

17 retailers£149 GBP to £865 GBP

A
Cheapest Retailer
-
£149 GBP
$199 USD
A
Retailer 2
-
£172 GBP
$231 USD
View
A
Retailer 3
-
£184 GBP
$247 USD
View
A
Retailer 4
-
£184 GBP
$247 USD
View
A
Retailer 5
-
£319 GBP
$428 USD
View
B+
Retailer 6
-
£323 GBP
$433 USD
View
B+
Retailer 7
-
£337 GBP
€430 EUR
View
B+
Retailer 8
-
£367 GBP
$492 USD
View
Retailer 9
-
£373 GBP
$500 USD
View
Price last confirmed 13 days ago
B+
Retailer 10
-
£425 GBP
$570 USD
View
B
Retailer 11
-
£473 GBP
$634 USD
View
Retailer 12
-
£540 GBP
$723 USD
View
Price last confirmed 45 days ago
B
Retailer 13
-
£592 GBP
$793 USD
View
B
Retailer 14
-
£632 GBP
$846 USD
View
B
Retailer 15
-
£675 GBP
$905 USD
View
B
Retailer 16
-
£717 GBP
View
Most Expensive
B
MOH London
LG781609788 · Oct 29
£865 GBP
View
16 more retailers have this diamond
Prices start from £149 GBPSave up to £717 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
£149 GBP