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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 €127 EUR
As of November 5, 2026
Save €610 EUR (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €738 EUR 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 €127 to €738, a €610 spread on the same certified stone. MOH London lists it at €738. 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
Colour
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: €738 EUR|Low: €127 EUR|High: €748 EUR|Avg: €336 EUR|-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€127 EUR
Retailer 9€158 EUR
Retailer 4€268 EUR
Retailer 3€275 EUR
Retailer 2€279 EUR
Retailer 6€285 EUR
Retailer 10€292 EUR
Retailer 5€401 EUR
Retailer 7€537 EUR
MOH London€738 EUR

43 data points across 10 retailers

16 retailers€127 EUR to €738 EUR

A
Cheapest Retailer
-
€127 EUR
A
Retailer 2
-
€148 EUR
View
A
Retailer 3
-
€158 EUR
View
Retailer 4
-
€158 EUR
View
Price last confirmed 12 days ago
A
Retailer 5
-
€250 EUR
View
A
Retailer 6
-
€268 EUR
View
A
Retailer 7
-
€275 EUR
View
A
Retailer 8
-
€279 EUR
View
A
Retailer 9
-
€285 EUR
View
B+
Retailer 10
-
€292 EUR
View
B+
Retailer 11
-
€401 EUR
View
B+
Retailer 12
-
€408 EUR
View
B
Retailer 13
-
€508 EUR
View
B
Retailer 14
-
€537 EUR
View
B
Retailer 15
-
€558 EUR
View
Most Expensive
B
MOH London
LG816613401 · Nov 4
€738 EUR
£652 GBP
View
15 more retailers have this diamond
Prices start from €127 EURSave up to €610 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
1.03ct Round
€127 EUR