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Round|Lab Grown|IGI

1.03ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG811623859

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811623859

Diamond specifications and retailer prices

From €144 EUR
As of November 5, 2026
Save €810 EUR (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €954 EUR at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

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 LG811623859 or 811623859. Listed at 22 retailers as of November 5, 2026, with prices from €144 to €954, a €810 spread on the same certified stone. Reve Diamonds lists it at €954. 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
Crown angle35.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811623859
Dimensions6.48 × 6.43 × 4.04 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.48 mm6.43 mm1.03 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811623859
Side View
Table 56.0%Crown 35.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.6%

Caratlytics Score

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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: €322 EUR|Low: €143 EUR|High: €954 EUR|Avg: €390 EUR|+2.3%
Retailer 1
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
Retailer 17
Reve Diamonds
November 6, 2026
Retailer 7€144 EUR
Retailer 2€161 EUR
Retailer 15€167 EUR
Retailer 3€178 EUR
Retailer 5€178 EUR
Retailer 16€257 EUR
Retailer 12€285 EUR
Retailer 10€311 EUR
Retailer 1€322 EUR
Retailer 4€323 EUR
Retailer 17€395 EUR
Retailer 9€415 EUR
Retailer 13€469 EUR
Retailer 11€526 EUR
Retailer 8€574 EUR
Retailer 6€622 EUR
Retailer 14€833 EUR
Reve Diamonds€954 EUR

45 data points across 18 retailers

22 retailers€144 EUR to €954 EUR

Retailer 1
-
€143 EUR
Price last confirmed 45 days ago
A
Retailer 2
-
€144 EUR
View
A
Retailer 3
-
€161 EUR
View
Final sale: no returns
A
Retailer 4
-
€167 EUR
View
Retailer 5
-
€167 EUR
View
Price last confirmed 66 days ago
Retailer 6
-
€175 EUR
View
Price last confirmed 45 days ago
Retailer 7
-
€178 EUR
View
Price last confirmed 12 days ago
A
Retailer 8
-
€178 EUR
View
A
Retailer 9
-
€257 EUR
View
A
Retailer 10
-
€285 EUR
View
B+
Retailer 11
-
€311 EUR
View
B+
Retailer 12
-
€322 EUR
View
B+
Retailer 13
-
€323 EUR
View
B+
Retailer 14
-
€395 EUR
View
B
Retailer 15
-
€415 EUR
View
B
Retailer 16
-
€469 EUR
View
B
Retailer 17
-
€526 EUR
View
Retailer 18
-
€569 EUR
View
Price last confirmed 46 days ago
B
Retailer 19
-
€574 EUR
View
B
Retailer 20
-
€622 EUR
View
B
Retailer 21
-
€833 EUR
View
Most Expensive
B
Reve Diamonds
DFF352A92 · Nov 6
€954 EUR
$1,071 USD
View
21 more retailers have this diamond
Prices start from €144 EURSave up to €810 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
€144 EUR