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Round|Lab Grown|IGI

1.03ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG854671217

Certificate IGI LG854671217

Diamond specifications and retailer prices

From €193 EUR
As of November 6, 2026
Save €391 EUR (67%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €585 EUR at Taylor and Hart · As of November 6, 2026
View at Taylor and Hart

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 LG854671217 or 854671217. Listed at 6 retailers as of November 6, 2026, with prices from €193 to €585, a €391 spread on the same certified stone. Taylor and Hart lists it at €585. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG854671217
Dimensions6.53 × 6.55 × 3.90 mm
L/W Ratio1.00
Top View
6.53 mm6.55 mm1.03 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG854671217
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 59.6%

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: Nov 6
Current: €253 EUR|Low: €193 EUR|High: €585 EUR|Avg: €334 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Taylor and Hart
November 6, 2026
Retailer 2€193 EUR
Retailer 4€225 EUR
Retailer 1€253 EUR
Retailer 5€284 EUR
Retailer 3€466 EUR
Taylor and Hart€585 EUR

1 data point across 6 retailers

6 retailers€193 EUR to €585 EUR

A
Cheapest Retailer
-
€193 EUR
B+
Retailer 2
-
€225 EUR
View
Retailer 3
-
€253 EUR
View
B+
Retailer 4
-
€284 EUR
View
B
Retailer 5
-
€466 EUR
View
Most Expensive
B
Taylor and Hart
7JK8NON · Nov 6
€585 EUR
$656 USD
View
5 more retailers have this diamond
Prices start from €193 EURSave up to €391 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
€193 EUR