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Round|Lab Grown|IGI

1.00ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG792689370

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792689370

Diamond specifications and retailer prices

From £351 GBP
$470 USD
As of October 29, 2026
10 retailers carry this diamond
Most expensive: £1,058 GBP at MOH London · As of October 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG792689370 or 792689370. Listed at 10 retailers as of October 29, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792689370
Dimensions6.43 × 6.39 × 3.93 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.43 mm6.39 mm1.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792689370
Side View
Table 61.0%Crown 35°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: £1,058 GBP|Low: £79 GBP|High: £1,058 GBP|Avg: £269 GBP|+0.2%
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 2, 2026
Retailer 10£97 GBP
Retailer 6£113 GBP
Retailer 7£116 GBP
Retailer 5£124 GBP
Retailer 4£125 GBP
Retailer 12£203 GBP
Retailer 8£219 GBP
Retailer 11£235 GBP
Retailer 2£282 GBP
Retailer 13£287 GBP
Retailer 9£306 GBP
Retailer 3£347 GBP
Retailer 14£351 GBP
Retailer 15£364 GBP
Retailer 16£402 GBP
Retailer 17£444 GBP
MOH London£1,058 GBP

16 data points across 17 retailers

10 retailers

Retailer 1
-
£97 GBP
$130 USD
Price last confirmed 30 days ago
Retailer 2
-
£116 GBP
$155 USD
View
Price last confirmed 39 days ago
Retailer 3
-
£124 GBP
$166 USD
View
Price last confirmed 32 days ago
Retailer 4
-
£282 GBP
View
Price last confirmed 29 days ago
Retailer 5
-
£287 GBP
$385 USD
View
Price last confirmed 29 days ago
Retailer 6
-
£306 GBP
$410 USD
View
Price last confirmed 31 days ago
Retailer 7
-
£347 GBP
SGD 628 SGD
View
Price last confirmed 30 days ago
B
Retailer 8
-
£351 GBP
$470 USD
View
Retailer 9
-
£402 GBP
$539 USD
View
Price last confirmed 31 days ago
Most Expensive
MOH London
LG792689370 · Oct 1
£1,058 GBP
View
Price last confirmed 30 days ago
9 more retailers have this diamond
Prices start from £351 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.

B
1.00ct Round
£351 GBP