Round|Lab Grown|IGI

1.00ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG840645920

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840645920

Diamond specifications and retailer prices

From $173 USD
As of October 27, 2026
Save $694 USD (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $867 USD at MOH London · As of October 29, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG840645920 or 840645920. Listed at 13 retailers as of October 27, 2026, with prices from $173 to $867, a $694 spread on the same certified stone. MOH London lists it at $867. 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
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840645920
Dimensions6.46 × 6.49 × 3.91 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II Faint Blue
Top View
6.46 mm6.49 mm1.00 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840645920
Side View
Table 59.0%Crown 33.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.4%

Caratlytics Score

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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: Oct 27
Current: $867 USD|Low: $169 USD|High: $867 USD|Avg: $407 USD|+1.3%
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
October 30, 2026
Retailer 12$173 USD
Retailer 10$185 USD
Retailer 2$309 USD
Retailer 11$315 USD
Retailer 8$317 USD
Retailer 6$319 USD
Retailer 7$321 USD
Retailer 4$339 USD
Retailer 9$450 USD
Retailer 5$505 USD
Retailer 3$627 USD
Retailer 13$649 USD
MOH London$867 USD

27 data points across 13 retailers

13 retailers$173 USD to $867 USD

A
Cheapest Retailer
-
$173 USD
A
Retailer 2
-
$185 USD
View
A
Retailer 3
-
$309 USD
£243 GBP
View
A
Retailer 4
-
$315 USD
View
A
Retailer 5
-
$317 USD
ZAR 5,118 ZAR
View
B+
Retailer 6
-
$319 USD
£251 GBP
View
A
Retailer 7
-
$321 USD
€306 EUR
View
B+
Retailer 8
-
$339 USD
View
B+
Retailer 9
-
$450 USD
A$692 AUD
View
Retailer 10
-
$505 USD
View
Price last confirmed 22 days ago
B
Retailer 11
-
$627 USD
View
B
Retailer 12
-
$649 USD
View
Most Expensive
B
MOH London
LG840645920 · Oct 29
$867 USD
£683 GBP
View
12 more retailers have this diamond
Prices start from $173 USDSave up to $694 USD

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
$173 USD