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Round|Lab Grown|IGI

1.05ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG818686964

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818686964

Diamond specifications and retailer prices

From €124 EUR
$139 USD
As of October 29, 2026
Save €601 EUR (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €725 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.05ct lab-grown round diamond

This 1.05ct 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 LG818686964 or 818686964. Listed at 13 retailers as of October 29, 2026, with prices from €124 to €725, a €601 spread on the same certified stone. MOH London lists it at €725. 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

1.05
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686964
Dimensions6.53 × 6.58 × 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
6.53 mm6.58 mm1.05 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686964
Side View
Table 57.0%Crown 34.9°Girdle: MediumPavilion 40.3°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
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 29
Current: €725 EUR|Low: €124 EUR|High: €763 EUR|Avg: €381 EUR|-3.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 7€124 EUR
Retailer 6€144 EUR
Retailer 4€154 EUR
Retailer 5€263 EUR
Retailer 2€271 EUR
Retailer 9€286 EUR
Retailer 10€288 EUR
Retailer 12€387 EUR
Retailer 8€421 EUR
Retailer 3€496 EUR
Retailer 11€546 EUR
MOH London€725 EUR

43 data points across 12 retailers

13 retailers€124 EUR to €725 EUR

A
Cheapest Retailer
-
€124 EUR
$139 USD
A
Retailer 2
-
€144 EUR
$161 USD
View
A
Retailer 3
-
€154 EUR
$172 USD
View
A
Retailer 4
-
€161 EUR
$180 USD
View
A
Retailer 5
-
€263 EUR
£231 GBP
View
A
Retailer 6
-
€271 EUR
View
A
Retailer 7
-
€286 EUR
$319 USD
View
A
Retailer 8
-
€288 EUR
$322 USD
View
B+
Retailer 9
-
€387 EUR
$432 USD
View
B+
Retailer 10
-
€421 EUR
$470 USD
View
B
Retailer 11
-
€496 EUR
$554 USD
View
B
Retailer 12
-
€546 EUR
$610 USD
View
Most Expensive
B
MOH London
LG818686964 · Oct 29
€725 EUR
£638 GBP
View
12 more retailers have this diamond
Prices start from €124 EURSave up to €601 EUR

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
1.05ct Round
€124 EUR