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Radiant|Lab Grown|IGI

5.09ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754508855

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

Certificate IGI LG754508855

Diamond specifications and retailer prices

From €6,594 EUR
$7,367 USD
As of November 1, 2026
Save €23,836 EUR (78%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €30,430 EUR at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 5.09ct lab-grown radiant diamond

This 5.09ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754508855 or 754508855. Listed at 13 retailers as of October 31, 2026, with prices from €6,594 to €30,430, a €23,836 spread on the same certified stone. Michael Trio lists it at €30,430. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.09
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508855
Dimensions8.73 × 8.73 × 5.67 mm
L/W Ratio1.00
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
8.73 mm8.73 mm5.09 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508855
Side View
Table 65.0%Crown 42.7°Girdle: STK-THKPavilion 33.8°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
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: €30,430 EUR|Low: €6,594 EUR|High: €32,861 EUR|Avg: €15,886 EUR|-7.4%
Michael Trio
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 1, 2026
Retailer 11€6,594 EUR
Retailer 10€6,828 EUR
Retailer 4€8,302 EUR
Retailer 6€8,555 EUR
Retailer 13€8,937 EUR
Retailer 8€9,970 EUR
Retailer 12€13,265 EUR
Retailer 9€13,644 EUR
Retailer 2€15,131 EUR
Retailer 7€20,710 EUR
Retailer 5€24,236 EUR
Retailer 3€26,690 EUR
Michael Trio€30,430 EUR

28 data points across 13 retailers

13 retailers€6,594 EUR to €30,430 EUR

A
Cheapest Retailer
-
€6,594 EUR
$7,367 USD
A
Retailer 2
-
€6,828 EUR
$7,628 USD
View
A
Retailer 3
-
€8,302 EUR
$9,275 USD
View
A
Retailer 4
-
€8,555 EUR
$9,558 USD
View
A
Retailer 5
-
€8,937 EUR
HK$78,000 HKD
View
A
Retailer 6
-
€9,970 EUR
£8,770 GBP
View
A
Retailer 7
-
€13,265 EUR
$14,820 USD
View
A
Retailer 8
-
€13,644 EUR
View
A
Retailer 9
-
€15,131 EUR
£13,311 GBP
View
B+
Retailer 10
-
€20,710 EUR
A$35,596 AUD
View
B+
Retailer 11
-
€24,236 EUR
$27,077 USD
View
B
Retailer 12
-
€26,690 EUR
$29,818 USD
View
Most Expensive
B
Michael Trio
5984198460 · Oct 31
€30,430 EUR
SGD 45,941 SGD
View
12 more retailers have this diamond
Prices start from €6,594 EURSave up to €23,836 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
5.09ct Radiant
€6,594 EUR