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Round|Lab Grown|IGI

1.05ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG620431074

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620431074

Diamond specifications and retailer prices

From €200 EUR
As of November 5, 2026
Save €870 EUR (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,070 EUR at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG620431074 or 620431074. Listed at 18 retailers as of November 4, 2026, with prices from €200 to €1,070, a €870 spread on the same certified stone. Reve Diamonds lists it at €1,070. 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

1.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620431074
Dimensions6.56 × 6.58 × 4.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.56 mm6.58 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620431074
Side View
Table 57.0%Crown 33.5°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.8%

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: €405 EUR|Low: €173 EUR|High: €1,070 EUR|Avg: €465 EUR|+5.3%
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
Reve Diamonds
November 6, 2026
Retailer 12€180 EUR
Retailer 3€200 EUR
Retailer 4€224 EUR
Retailer 13€224 EUR
Retailer 11€276 EUR
Retailer 9€380 EUR
Retailer 2€388 EUR
Retailer 1€405 EUR
Retailer 6€432 EUR
Retailer 10€479 EUR
Retailer 5€502 EUR
Retailer 8€581 EUR
Retailer 7€1,042 EUR
Reve Diamonds€1,070 EUR

41 data points across 14 retailers

18 retailers€200 EUR to €1,070 EUR

Retailer 1
-
€180 EUR
Price last confirmed 17 days ago
A
Retailer 2
-
€200 EUR
View
Final sale: no returns
Retailer 3
-
€209 EUR
View
Price last confirmed 17 days ago
Retailer 4
-
€224 EUR
View
Price last confirmed 21 days ago
Retailer 5
-
€224 EUR
View
Price last confirmed 16 days ago
A
Retailer 6
-
€276 EUR
View
Retailer 7
-
€365 EUR
View
Price last confirmed 58 days ago
B+
Retailer 8
-
€380 EUR
View
B+
Retailer 9
-
€388 EUR
View
B+
Retailer 10
-
€405 EUR
View
B+
Retailer 11
-
€432 EUR
View
B+
Retailer 12
-
€479 EUR
View
B
Retailer 13
-
€502 EUR
View
B
Retailer 14
-
€581 EUR
View
Retailer 15
-
€719 EUR
View
Price last confirmed 16 days ago
B
Retailer 16
-
€766 EUR
View
B
Retailer 17
-
€1,042 EUR
View
Most Expensive
B
Reve Diamonds
C3DE76E96 · Nov 4
€1,070 EUR
$1,201 USD
View
17 more retailers have this diamond
Prices start from €200 EURSave up to €870 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
1.05ct Round
€200 EUR