Round|Lab Grown|IGI

1.00ct G VS2 Round Lab Grown Diamond

ID • G/VS2 • IGI LG818687205

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818687205

Diamond specifications and retailer prices

From £127 GBP
$169 USD
As of October 24, 2026
Save £459 GBP (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £638 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818687205 or 818687205. Listed at 17 retailers as of October 24, 2026, with a 362% 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

1.00
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818687205
Dimensions6.37 × 6.42 × 3.98 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
6.37 mm6.42 mm1.00 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818687205
Side View
Table 58.0%Crown 34.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

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 24
Current: £638 GBP|Low: £105 GBP|High: £643 GBP|Avg: £306 GBP|-0.7%
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
Retailer 16
Retailer 17
October 28, 2026
Retailer 13£110 GBP
Retailer 15£127 GBP
Retailer 4£136 GBP
Retailer 17£136 GBP
Retailer 8£216 GBP
Retailer 11£222 GBP
Retailer 14£239 GBP
Retailer 16£252 GBP
Retailer 10£280 GBP
Retailer 3£300 GBP
Retailer 6£319 GBP
Retailer 5£436 GBP
Retailer 12£461 GBP
Retailer 7£469 GBP
Retailer 9£478 GBP
Retailer 2£586 GBP
MOH London£638 GBP

24 data points across 17 retailers

17 retailers£127 GBP to £586 GBP

A
Retailer 1
-
£110 GBP
$146 USD
Price last confirmed 7 days ago
A
Retailer 2
-
£127 GBP
$169 USD
View
A
Retailer 3
-
£136 GBP
$181 USD
View
A
Retailer 4
-
£136 GBP
$181 USD
View
A
Retailer 5
-
£216 GBP
$287 USD
View
A
Retailer 6
-
£222 GBP
View
B+
Retailer 7
-
£239 GBP
€303 EUR
View
B+
Retailer 8
-
£252 GBP
$335 USD
View
B+
Retailer 9
-
£280 GBP
View
B+
Retailer 10
-
£300 GBP
$400 USD
View
Price last confirmed 21 days ago
B+
Retailer 11
-
£319 GBP
$425 USD
View
B
Retailer 12
-
£436 GBP
$581 USD
View
B
Retailer 13
-
£461 GBP
$614 USD
View
B
Retailer 14
-
£469 GBP
$624 USD
View
B
Retailer 15
-
£478 GBP
$637 USD
View
B
Retailer 16
-
£586 GBP
$780 USD
View
Most Expensive
B
MOH London
LG818687205 · Oct 21
£638 GBP
View
Price last confirmed 8 days ago
16 more retailers have this diamond
Prices start from £127 GBPSave up to £459 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
1.00ct Round
£127 GBP