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Radiant|Lab Grown|IGI

1.09ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG831604024

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

Certificate IGI LG831604024

Diamond specifications and retailer prices

From €249 EUR
$279 USD
As of November 1, 2026
Save €1,766 EUR (88%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €2,015 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG831604024 or 831604024. Listed at 22 retailers as of October 31, 2026, with prices from €249 to €2,015, a €1,766 spread on the same certified stone. Brilliant Earth lists it at €2,015. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831604024
Dimensions7.72 × 5.14 × 3.34 mm
L/W Ratio1.50
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
7.72 mm5.14 mm1.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831604024
Side View
Table 63.0%Crown 36.4°Girdle: THN-MEDPavilion 36.1°Culet: NoneDepth 65.0%

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 1
Current: €2,015 EUR|Low: €249 EUR|High: €2,532 EUR|Avg: €746 EUR|-20.4%
Brilliant Earth
Retailer 2
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Retailer 5
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Retailer 21
November 1, 2026
Retailer 5€249 EUR
Retailer 4€259 EUR
Retailer 16€276 EUR
Retailer 13€284 EUR
Retailer 14€290 EUR
Retailer 21€308 EUR
Retailer 9€379 EUR
Retailer 18€483 EUR
Retailer 6€495 EUR
Retailer 15€526 EUR
Retailer 19€573 EUR
Retailer 20€581 EUR
Retailer 10€617 EUR
Retailer 7€743 EUR
Retailer 11€848 EUR
Retailer 17€888 EUR
Retailer 3€934 EUR
Retailer 8€967 EUR
Retailer 2€1,206 EUR
Retailer 12€1,447 EUR
Brilliant Earth€2,015 EUR

31 data points across 21 retailers

22 retailers€249 EUR to €2,015 EUR

A
Cheapest Retailer
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€249 EUR
$279 USD
Final sale: no returns
A
Retailer 2
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€259 EUR
$290 USD
View
A
Retailer 3
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€276 EUR
$310 USD
View
A
Retailer 4
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€284 EUR
£251 GBP
View
A
Retailer 5
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€290 EUR
$325 USD
View
A
Retailer 6
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€308 EUR
HK$2,700 HKD
View
Retailer 7
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€359 EUR
$403 USD
View
Price last confirmed 8 days ago
A
Retailer 8
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€379 EUR
$425 USD
View
A
Retailer 9
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€483 EUR
$542 USD
View
A
Retailer 10
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€495 EUR
$555 USD
View
A
Retailer 11
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€526 EUR
£464 GBP
View
B+
Retailer 12
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€573 EUR
$643 USD
View
B+
Retailer 13
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€581 EUR
View
B+
Retailer 14
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€617 EUR
ZAR 11,183 ZAR
View
B+
Retailer 15
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€743 EUR
SGD 1,126 SGD
View
B+
Retailer 16
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€848 EUR
$951 USD
View
B+
Retailer 17
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€888 EUR
$996 USD
View
B+
Retailer 18
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€934 EUR
$1,048 USD
View
B
Retailer 19
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€967 EUR
$1,085 USD
View
B
Retailer 20
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€1,206 EUR
$1,353 USD
View
B
Retailer 21
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€1,447 EUR
£1,278 GBP
View
Most Expensive
B
Brilliant Earth
21605275A · Oct 31
€2,015 EUR
$2,260 USD
View
21 more retailers have this diamond
Prices start from €249 EURSave up to €1,766 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
1.09ct Radiant
€249 EUR