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Round|Lab Grown|IGI

1.05ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG783638340

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783638340

Diamond specifications and retailer prices

From $145 USD
As of November 5, 2026
Save $696 USD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $841 USD at MOH London · As of November 4, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783638340 or 783638340. Listed at 16 retailers as of November 4, 2026, with prices from $145 to $841, a $696 spread on the same certified stone. MOH London lists it at $841. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783638340
Dimensions6.51 × 6.47 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.51 mm6.47 mm1.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783638340
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.1%

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: Nov 5
Current: $841 USD|Low: $140 USD|High: $852 USD|Avg: $392 USD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$145 USD
Retailer 7$180 USD
Retailer 3$307 USD
Retailer 2$318 USD
Retailer 8$333 USD
Retailer 10$381 USD
Retailer 9$426 USD
Retailer 4$460 USD
Retailer 5$612 USD
MOH London$841 USD

43 data points across 10 retailers

16 retailers$145 USD to $841 USD

A
Cheapest Retailer
-
$145 USD
A
Retailer 2
-
$169 USD
View
Retailer 3
-
$180 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$180 USD
View
A
Retailer 5
-
$290 USD
View
A
Retailer 6
-
$307 USD
View
A
Retailer 7
-
$318 USD
View
A
Retailer 8
-
$333 USD
View
Retailer 9
-
$381 USD
View
Price last confirmed 65 days ago
B+
Retailer 10
-
$426 USD
View
B+
Retailer 11
-
$460 USD
View
B+
Retailer 12
-
$467 USD
View
B
Retailer 13
-
$579 USD
View
B
Retailer 14
-
$612 USD
View
B
Retailer 15
-
$634 USD
View
Most Expensive
B
MOH London
LG783638340 · Nov 4
$841 USD
£662 GBP
View
15 more retailers have this diamond
Prices start from $145 USDSave up to $696 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
1.05ct Round
$145 USD