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Radiant|Lab Grown|IGI

1.00ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG632434291

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

Certificate IGI LG632434291

Diamond specifications and retailer prices

From €143 EUR
As of November 6, 2026
Save €811 EUR (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €954 EUR at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant 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 LG632434291 or 632434291. Listed at 20 retailers as of November 6, 2026, with prices from €143 to €954, a €811 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

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG632434291
Dimensions7.09 × 5.03 × 3.29 mm
L/W Ratio1.41
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
7.09 mm5.03 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG632434291
Side View
Table 62.0%Crown 38.3°Girdle: MediumPavilion 33.5°Culet: NoneDepth 65.4%

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 6
Current: €343 EUR|Low: €136 EUR|High: €954 EUR|Avg: €419 EUR|+9.7%
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
Retailer 14
Retailer 15
Reve Diamonds
November 6, 2026
Retailer 13€143 EUR
Retailer 4€159 EUR
Retailer 12€166 EUR
Retailer 2€177 EUR
Retailer 3€177 EUR
Retailer 7€287 EUR
Retailer 8€308 EUR
Retailer 15€322 EUR
Retailer 1€343 EUR
Retailer 6€345 EUR
Retailer 14€394 EUR
Retailer 9€600 EUR
Retailer 11€603 EUR
Retailer 5€619 EUR
Retailer 10€827 EUR
Reve Diamonds€954 EUR

42 data points across 16 retailers

20 retailers€143 EUR to €954 EUR

A
Cheapest Retailer
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€143 EUR
A
Retailer 2
-
€159 EUR
View
Final sale: no returns
A
Retailer 3
-
€166 EUR
View
Retailer 4
-
€177 EUR
View
Price last confirmed 13 days ago
A
Retailer 5
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€177 EUR
View
A
Retailer 6
-
€287 EUR
View
A
Retailer 7
-
€308 EUR
View
A
Retailer 8
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€322 EUR
View
B+
Retailer 9
-
€343 EUR
View
Retailer 10
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€345 EUR
View
Price last confirmed 29 days ago
B+
Retailer 11
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€394 EUR
View
B+
Retailer 12
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€420 EUR
View
Retailer 13
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€490 EUR
View
Price last confirmed 68 days ago
B+
Retailer 14
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€493 EUR
View
B
Retailer 15
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€591 EUR
View
B
Retailer 16
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€600 EUR
View
B
Retailer 17
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€603 EUR
View
B
Retailer 18
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€619 EUR
View
B
Retailer 19
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€827 EUR
View
Most Expensive
B
Reve Diamonds
A5C211770 · Nov 6
€954 EUR
$1,065 USD
View
19 more retailers have this diamond
Prices start from €143 EURSave up to €811 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
€143 EUR