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Radiant|Lab Grown|IGI

5.05ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG665415778

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

Certificate IGI LG665415778

Diamond specifications and retailer prices

From €7,062 EUR
$7,890 USD
As of October 28, 2026
Save €26,814 EUR (79%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €33,877 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 5.05ct lab-grown radiant diamond

This 5.05ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665415778 or 665415778. Listed at 24 retailers as of October 28, 2026, with prices from €7,062 to €33,877, a €26,814 spread on the same certified stone. Taylor and Hart lists it at €33,877. 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

5.05
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.7°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665415778
Dimensions12.05 × 8.41 × 5.70 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.05 mm8.41 mm5.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665415778
Side View
Table 65.0%Crown 43.7°Girdle: MED-STKPavilion 34.3°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: €18,720 EUR|Low: €7,062 EUR|High: €55,415 EUR|Avg: €15,942 EUR|-2.3%
Retailer 1
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Retailer 3
Retailer 4
Retailer 5
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Retailer 11
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Retailer 17
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Retailer 19
Taylor and Hart
November 1, 2026
Retailer 16€7,062 EUR
Retailer 3€7,796 EUR
Retailer 11€8,823 EUR
Retailer 6€9,176 EUR
Retailer 10€9,881 EUR
Retailer 5€10,115 EUR
Retailer 8€10,234 EUR
Retailer 18€10,407 EUR
Retailer 7€10,588 EUR
Retailer 2€11,195 EUR
Retailer 12€11,662 EUR
Retailer 13€13,453 EUR
Retailer 17€15,297 EUR
Retailer 9€16,192 EUR
Retailer 15€17,840 EUR
Retailer 1€18,720 EUR
Retailer 14€22,954 EUR
Retailer 19€23,375 EUR
Taylor and Hart€33,877 EUR
Retailer 4€55,057 EUR

26 data points across 20 retailers

24 retailers€7,062 EUR to €33,877 EUR

A
Cheapest Retailer
-
€7,062 EUR
$7,890 USD
A
Retailer 2
-
€7,796 EUR
$8,710 USD
View
A
Retailer 3
-
€8,823 EUR
$9,857 USD
View
A
Retailer 4
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€9,176 EUR
$10,251 USD
View
A
Retailer 5
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€9,881 EUR
$11,039 USD
View
Final sale: no returns
A
Retailer 6
-
€10,115 EUR
$11,300 USD
View
A
Retailer 7
-
€10,234 EUR
$11,434 USD
View
A
Retailer 8
-
€10,407 EUR
$11,627 USD
View
Retailer 9
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€10,473 EUR
$11,700 USD
View
Price last confirmed 15 days ago
A
Retailer 10
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€10,588 EUR
$11,829 USD
View
A
Retailer 11
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€11,195 EUR
$12,507 USD
View
Retailer 12
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€11,285 EUR
$12,608 USD
View
Price last confirmed 16 days ago
A
Retailer 13
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€11,662 EUR
£10,259 GBP
View
A
Retailer 14
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€13,453 EUR
£11,834 GBP
View
A
Retailer 15
-
€15,297 EUR
$17,090 USD
View
A
Retailer 16
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€16,192 EUR
£14,244 GBP
View
B+
Retailer 17
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€17,840 EUR
£15,694 GBP
View
B+
Retailer 18
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€18,720 EUR
$20,914 USD
View
B+
Retailer 19
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€19,478 EUR
$21,761 USD
View
B+
Retailer 20
-
€22,954 EUR
ZAR 414,282 ZAR
View
Retailer 21
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€23,375 EUR
A$40,176 AUD
View
Price last confirmed 9 days ago
Most Expensive
B
Taylor and Hart
ZVW1TLP · Oct 31
€33,877 EUR
$37,847 USD
View
21 more retailers have this diamond
Prices start from €7,062 EURSave up to €26,814 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
5.05ct Radiant
€7,062 EUR