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Radiant|Lab Grown|IGI

1.09ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG817693445

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

Certificate IGI LG817693445

Diamond specifications and retailer prices

From €341 EUR
$383 USD
As of November 2, 2026
Save €2,191 EUR (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €2,532 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 LG817693445 or 817693445. Listed at 21 retailers as of October 31, 2026, with prices from €341 to €2,532, a €2,191 spread on the same certified stone. Brilliant Earth lists it at €2,532. 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 angle40.3°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817693445
Dimensions7.52 × 5.14 × 3.30 mm
L/W Ratio1.46
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
7.52 mm5.14 mm1.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817693445
Side View
Table 63.0%Crown 40.3°Girdle: Slightly ThickPavilion 33.7°Culet: NoneDepth 64.2%

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 2
Current: €2,532 EUR|Low: €337 EUR|High: €2,532 EUR|Avg: €919 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
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Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 5€341 EUR
Retailer 8€382 EUR
Retailer 20€382 EUR
Retailer 4€424 EUR
Retailer 7€424 EUR
Retailer 2€436 EUR
Retailer 19€468 EUR
Retailer 17€557 EUR
Retailer 3€614 EUR
Retailer 9€673 EUR
Retailer 16€679 EUR
Retailer 13€730 EUR
Retailer 15€767 EUR
Retailer 12€1,124 EUR
Retailer 21€1,188 EUR
Retailer 10€1,236 EUR
Retailer 6€1,361 EUR
Retailer 14€1,395 EUR
Retailer 11€1,585 EUR
Retailer 18€1,657 EUR
Brilliant Earth€2,532 EUR

36 data points across 21 retailers

21 retailers€341 EUR to €2,532 EUR

A
Cheapest Retailer
-
€341 EUR
$383 USD
A
Retailer 2
-
€382 EUR
$428 USD
View
Final sale: no returns
A
Retailer 3
-
€382 EUR
$429 USD
View
Retailer 4
-
€424 EUR
$475 USD
View
Price last confirmed 8 days ago
A
Retailer 5
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€424 EUR
$475 USD
View
A
Retailer 6
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€436 EUR
£385 GBP
View
A
Retailer 7
-
€468 EUR
HK$4,100 HKD
View
A
Retailer 8
-
€557 EUR
$625 USD
View
B+
Retailer 9
-
€614 EUR
$689 USD
View
B+
Retailer 10
-
€673 EUR
$755 USD
View
B+
Retailer 11
-
€679 EUR
View
B+
Retailer 12
-
€730 EUR
ZAR 13,232 ZAR
View
B+
Retailer 13
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€767 EUR
£677 GBP
View
B+
Retailer 14
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€1,124 EUR
SGD 1,703 SGD
View
B+
Retailer 15
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€1,188 EUR
$1,332 USD
View
B
Retailer 16
-
€1,236 EUR
£1,092 GBP
View
B
Retailer 17
-
€1,361 EUR
$1,527 USD
View
B
Retailer 18
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€1,395 EUR
$1,565 USD
View
B
Retailer 19
-
€1,585 EUR
$1,778 USD
View
B
Retailer 20
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€1,657 EUR
£1,463 GBP
View
Most Expensive
B
Brilliant Earth
20860153A · Oct 31
€2,532 EUR
$2,840 USD
View
20 more retailers have this diamond
Prices start from €341 EURSave up to €2,191 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
€341 EUR