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Round|Lab Grown|IGI

1.03ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG816613401

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816613401

Diamond specifications and retailer prices

From $143 USD
As of November 5, 2026
Save $685 USD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $828 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct lab-grown round diamond

This 1.03ct 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 LG816613401 or 816613401. Listed at 16 retailers as of November 4, 2026, with prices from $143 to $828, a $685 spread on the same certified stone. MOH London lists it at $828. 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

1.03
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816613401
Dimensions6.53 × 6.50 × 3.94 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
6.53 mm6.50 mm1.03 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816613401
Side View
Table 58.0%Crown 33.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.4%

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: $828 USD|Low: $143 USD|High: $839 USD|Avg: $378 USD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$143 USD
Retailer 9$177 USD
Retailer 4$301 USD
Retailer 3$309 USD
Retailer 2$313 USD
Retailer 6$320 USD
Retailer 10$328 USD
Retailer 5$450 USD
Retailer 7$603 USD
MOH London$828 USD

43 data points across 10 retailers

16 retailers$143 USD to $828 USD

A
Cheapest Retailer
-
$143 USD
A
Retailer 2
-
$166 USD
View
A
Retailer 3
-
$177 USD
View
Retailer 4
-
$177 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$281 USD
View
A
Retailer 6
-
$301 USD
View
A
Retailer 7
-
$309 USD
View
A
Retailer 8
-
$313 USD
View
A
Retailer 9
-
$320 USD
View
B+
Retailer 10
-
$328 USD
View
B+
Retailer 11
-
$450 USD
View
B+
Retailer 12
-
$458 USD
View
B
Retailer 13
-
$570 USD
View
B
Retailer 14
-
$603 USD
View
B
Retailer 15
-
$626 USD
View
Most Expensive
B
MOH London
LG816613401 · Nov 4
$828 USD
£652 GBP
View
15 more retailers have this diamond
Prices start from $143 USDSave up to $685 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
1.03ct Round
$143 USD