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Radiant|Lab Grown|IGI

4.89ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG731557728

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

Certificate IGI LG731557728

Diamond specifications and retailer prices

From €7,400 EUR
£6,510 GBP
As of October 30, 2026
Save €23,759 EUR (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €31,159 EUR at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 4.89ct lab-grown radiant diamond

This 4.89ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG731557728 or 731557728. Listed at 14 retailers as of October 30, 2026, with prices from €7,400 to €31,159, a €23,759 spread on the same certified stone. Michael Trio lists it at €31,159. 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

4.89
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731557728
Dimensions9.34 × 9.14 × 6.15 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.34 mm9.14 mm4.89 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731557728
Side View
Table 68.0%Crown 42.8°Girdle: Slightly ThickPavilion 34.8°Culet: NoneDepth 67.3%

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: Oct 30
Current: €31,159 EUR|Low: €7,375 EUR|High: €31,159 EUR|Avg: €15,928 EUR
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
Retailer 14
November 1, 2026
Retailer 9€7,400 EUR
Retailer 4€7,894 EUR
Retailer 3€8,552 EUR
Retailer 8€8,776 EUR
Retailer 12€8,799 EUR
Retailer 14€8,858 EUR
Retailer 5€12,700 EUR
Retailer 2€16,203 EUR
Retailer 11€16,214 EUR
Retailer 7€16,305 EUR
Retailer 10€18,854 EUR
Retailer 13€24,669 EUR
Retailer 6€28,155 EUR
Michael Trio€31,159 EUR

40 data points across 14 retailers

14 retailers€7,400 EUR to €31,159 EUR

A
Cheapest Retailer
-
€7,400 EUR
£6,510 GBP
B+
Retailer 2
-
€7,894 EUR
$8,819 USD
View
B+
Retailer 3
-
€8,552 EUR
$9,554 USD
View
Final sale: no returns
B+
Retailer 4
-
€8,776 EUR
$9,805 USD
View
B+
Retailer 5
-
€8,799 EUR
$9,830 USD
View
Retailer 6
-
€8,858 EUR
$9,896 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
€12,700 EUR
£11,172 GBP
View
B+
Retailer 8
-
€16,203 EUR
$18,102 USD
View
B+
Retailer 9
-
€16,214 EUR
£14,263 GBP
View
B
Retailer 10
-
€16,305 EUR
View
B
Retailer 11
-
€18,854 EUR
ZAR 340,289 ZAR
View
B
Retailer 12
-
€24,669 EUR
$27,561 USD
View
B
Retailer 13
-
€28,155 EUR
$31,455 USD
View
Most Expensive
B
Michael Trio
5003831750 · Oct 31
€31,159 EUR
SGD 47,042 SGD
View
13 more retailers have this diamond
Prices start from €7,400 EURSave up to €23,759 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
4.89ct Radiant
€7,400 EUR