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Radiant|Lab Grown|IGI

1.00ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG490176326

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG490176326

Diamond specifications and retailer prices

From €119 EUR
As of November 6, 2026
Save €1,027 EUR (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €1,146 EUR at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant 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 LG490176326 or 490176326. Listed at 20 retailers as of November 6, 2026, with prices from €119 to €1,146, a €1,027 spread on the same certified stone. Do Amore Diamonds lists it at €1,146. 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

1.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490176326
Dimensions7.05 × 4.97 × 3.39 mm
L/W Ratio1.42
Culet sizePointed
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
7.05 mm4.97 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490176326
Side View
Table 63.0%Crown 40.1°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 68.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €1,146 EUR|Low: €115 EUR|High: €1,146 EUR|Avg: €369 EUR
Do Amore Diamonds
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
November 6, 2026
Retailer 9€119 EUR
Retailer 7€133 EUR
Retailer 14€138 EUR
Retailer 15€148 EUR
Retailer 3€212 EUR
Retailer 5€231 EUR
Retailer 10€279 EUR
Retailer 2€288 EUR
Retailer 13€309 EUR
Retailer 12€354 EUR
Retailer 6€493 EUR
Retailer 4€502 EUR
Retailer 8€524 EUR
Retailer 11€760 EUR
Do Amore Diamonds€1,146 EUR

43 data points across 15 retailers

20 retailers€119 EUR to €1,146 EUR

A
Cheapest Retailer
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€119 EUR
A
Retailer 2
-
€133 EUR
View
Final sale: no returns
A
Retailer 3
-
€138 EUR
View
A
Retailer 4
-
€148 EUR
View
A
Retailer 5
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€196 EUR
View
B+
Retailer 6
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€231 EUR
View
A
Retailer 7
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€252 EUR
View
A
Retailer 8
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€279 EUR
View
A
Retailer 9
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€288 EUR
View
A
Retailer 10
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€309 EUR
View
B+
Retailer 11
-
€354 EUR
View
B+
Retailer 12
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€368 EUR
View
B
Retailer 13
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€473 EUR
View
B+
Retailer 14
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€493 EUR
View
B+
Retailer 15
-
€502 EUR
View
B+
Retailer 16
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€524 EUR
View
B
Retailer 17
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€620 EUR
View
B
Retailer 18
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€680 EUR
View
B
Retailer 19
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€760 EUR
View
Most Expensive
B
Do Amore Diamonds
27-4E1C3A675 · Nov 6
€1,146 EUR
$1,280 USD
View
19 more retailers have this diamond
Prices start from €119 EURSave up to €1,027 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
1.00ct Radiant
€119 EUR