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Round|Lab Grown|IGI

1.01ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG825655309

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825655309

Diamond specifications and retailer prices

From $138 USD
As of November 1, 2026
Save $661 USD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $799 USD at MOH London · As of November 1, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG825655309 or 825655309. Listed at 16 retailers as of November 1, 2026, with prices from $138 to $799, a $661 spread on the same certified stone. MOH London lists it at $799. 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
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825655309
Dimensions6.43 × 6.41 × 3.95 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.43 mm6.41 mm1.01 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825655309
Side View
Table 57.0%Crown 34.6°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.5%

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 1
Current: $799 USD|Low: $137 USD|High: $810 USD|Avg: $367 USD|-1.1%
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
November 2, 2026
Retailer 11$138 USD
Retailer 16$154 USD
Retailer 3$160 USD
Retailer 6$171 USD
Retailer 8$171 USD
Retailer 7$271 USD
Retailer 10$290 USD
Retailer 9$300 USD
Retailer 13$319 USD
Retailer 4$380 USD
Retailer 2$438 USD
Retailer 5$474 USD
Retailer 12$491 USD
Retailer 14$549 USD
Retailer 15$605 USD
MOH London$799 USD

22 data points across 16 retailers

16 retailers$138 USD to $799 USD

A
Cheapest Retailer
-
$138 USD
A
Retailer 2
-
$154 USD
View
Final sale: no returns
A
Retailer 3
-
$160 USD
View
A
Retailer 4
-
$171 USD
View
Retailer 5
-
$171 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$271 USD
View
A
Retailer 7
-
$290 USD
£229 GBP
View
A
Retailer 8
-
$300 USD
£236 GBP
View
A
Retailer 9
-
$319 USD
View
B+
Retailer 10
-
$380 USD
View
B+
Retailer 11
-
$438 USD
View
B+
Retailer 12
-
$474 USD
SGD 641 SGD
View
B+
Retailer 13
-
$491 USD
View
B+
Retailer 14
-
$549 USD
View
B
Retailer 15
-
$605 USD
View
Most Expensive
B
MOH London
LG825655309 · Nov 1
$799 USD
£629 GBP
View
15 more retailers have this diamond
Prices start from $138 USDSave up to $661 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
1.01ct Round
$138 USD