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Round|Lab Grown|IGI

1.05ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG670428283

Shape and cutting style on the report: Round brilliant

Certificate IGI LG670428283

Diamond specifications and retailer prices

From €131 EUR
As of November 5, 2026
Save €782 EUR (86%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €913 EUR at Reve Diamonds · As of November 6, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG670428283 or 670428283. Listed at 24 retailers as of November 5, 2026, with prices from €131 to €913, a €782 spread on the same certified stone. Reve Diamonds lists it at €913. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670428283
Dimensions6.58 × 6.56 × 3.99 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.58 mm6.56 mm1.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670428283
Side View
Table 58.0%Crown 33.9°Girdle: MediumPavilion 41°Culet: NoneDepth 60.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: €277 EUR|Low: €126 EUR|High: €768 EUR|Avg: €352 EUR|+3.7%
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
November 6, 2026
Retailer 11€131 EUR
Retailer 7€146 EUR
Retailer 13€151 EUR
Retailer 2€162 EUR
Retailer 5€221 EUR
Retailer 1€277 EUR
Retailer 10€306 EUR
Retailer 6€318 EUR
Retailer 9€352 EUR
Retailer 12€522 EUR
Retailer 4€551 EUR
Retailer 3€579 EUR
Retailer 8€756 EUR

40 data points across 13 retailers

24 retailers€131 EUR to €913 EUR

A
Cheapest Retailer
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€131 EUR
A
Retailer 2
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€146 EUR
View
Final sale: no returns
A
Retailer 3
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€151 EUR
View
Retailer 4
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€160 EUR
View
Price last confirmed 66 days ago
Retailer 5
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€162 EUR
View
Price last confirmed 12 days ago
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Retailer 6
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€162 EUR
View
B+
Retailer 7
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€221 EUR
View
A
Retailer 8
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€263 EUR
View
A
Retailer 9
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€277 EUR
View
B+
Retailer 10
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€306 EUR
View
A
Retailer 11
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€318 EUR
View
B+
Retailer 12
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€352 EUR
View
B+
Retailer 13
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€352 EUR
View
B+
Retailer 14
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€352 EUR
View
B+
Retailer 15
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€352 EUR
View
B+
Retailer 16
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€365 EUR
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B+
Retailer 17
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€365 EUR
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Retailer 18
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€381 EUR
View
Price last confirmed 11 days ago
B
Retailer 19
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€522 EUR
View
B
Retailer 20
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€551 EUR
View
B
Retailer 21
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€571 EUR
View
B
Retailer 22
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€579 EUR
View
B
Retailer 23
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€756 EUR
View
Most Expensive
B
Reve Diamonds
61D252AC6 · Nov 6
€913 EUR
$1,024 USD
View
23 more retailers have this diamond
Prices start from €131 EURSave up to €782 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
€131 EUR