Round|Lab Grown|IGI

1.01ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG804642955

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804642955

Diamond specifications and retailer prices

From $338 USD
€322 EUR
As of October 27, 2026
Save $112 USD (25%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $839 USD at MOH London · As of October 21, 2026
View at MOH London

About this 1.01ct lab-grown round diamond

This 1.01ct 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 LG804642955 or 804642955. Listed at 17 retailers as of October 27, 2026, with a 33% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804642955
Dimensions6.44 × 6.37 × 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
6.44 mm6.37 mm1.01 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804642955
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $839 USD|Low: $138 USD|High: $845 USD|Avg: $362 USD|+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
October 27, 2026
Retailer 9$144 USD
Retailer 4$167 USD
Retailer 5$178 USD
Retailer 11$178 USD
Retailer 6$291 USD
Retailer 12$331 USD
Retailer 2$338 USD
Retailer 7$397 USD
Retailer 13$423 USD
Retailer 10$450 USD
Retailer 8$454 USD
Retailer 3$574 USD
MOH London$839 USD

38 data points across 13 retailers

17 retailers$338 USD to $450 USD

Retailer 1
-
$144 USD
Price last confirmed 9 days ago
Retailer 2
-
$167 USD
View
Price last confirmed 12 days ago
Retailer 3
-
$178 USD
View
Price last confirmed 16 days ago
Retailer 4
-
$178 USD
View
Price last confirmed 11 days ago
Retailer 5
-
$291 USD
£229 GBP
View
Price last confirmed 9 days ago
Retailer 6
-
$302 USD
View
Price last confirmed 8 days ago
Retailer 7
-
$331 USD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$338 USD
€322 EUR
View
Retailer 9
-
$397 USD
£313 GBP
View
Price last confirmed 10 days ago
Retailer 10
-
$402 USD
View
Price last confirmed 90 days ago
Retailer 11
-
$423 USD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$450 USD
View
Retailer 13
-
$454 USD
View
Price last confirmed 9 days ago
Retailer 14
-
$548 USD
View
Price last confirmed 46 days ago
Retailer 15
-
$574 USD
View
Price last confirmed 11 days ago
Retailer 16
-
$629 USD
View
Price last confirmed 9 days ago
Most Expensive
MOH London
LG804642955 · Oct 21
$839 USD
£661 GBP
View
Price last confirmed 11 days ago
16 more retailers have this diamond
Prices start from $338 USDSave up to $112 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.

B+
1.01ct Round
$338 USD