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Radiant|Lab Grown|IGI

5.10ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG754561978

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

Certificate IGI LG754561978

Diamond specifications and retailer prices

From €7,043 EUR
$7,868 USD
As of October 30, 2026
Save €19,683 EUR (74%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €26,726 EUR at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.1ct lab-grown radiant diamond

This 5.1ct 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 LG754561978 or 754561978. Listed at 23 retailers as of October 30, 2026, with prices from €7,043 to €26,726, a €19,683 spread on the same certified stone. Taylor and Hart lists it at €26,726. 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

5.10
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754561978
Dimensions12.47 × 8.54 × 5.47 mm
L/W Ratio1.46
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
12.47 mm8.54 mm5.10 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754561978
Side View
Table 66.0%Crown 40.6°Girdle: Slightly ThickPavilion 34.7°Culet: NoneDepth 64.1%

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: €14,489 EUR|Low: €7,043 EUR|High: €26,726 EUR|Avg: €13,815 EUR|-8.5%
Retailer 1
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Retailer 21
Taylor and Hart
October 31, 2026
Retailer 19€7,043 EUR
Retailer 17€7,255 EUR
Retailer 9€7,888 EUR
Retailer 4€8,169 EUR
Retailer 15€8,190 EUR
Retailer 21€8,433 EUR
Retailer 10€8,628 EUR
Retailer 16€9,087 EUR
Retailer 7€9,187 EUR
Retailer 2€9,324 EUR
Retailer 8€9,577 EUR
Retailer 12€10,075 EUR
Retailer 14€11,128 EUR
Retailer 5€11,704 EUR
Retailer 1€14,489 EUR
Retailer 18€14,943 EUR
Retailer 6€15,246 EUR
Retailer 3€16,597 EUR
Retailer 11€19,977 EUR
Retailer 13€21,542 EUR
Retailer 20€22,746 EUR
Taylor and Hart€26,726 EUR

30 data points across 22 retailers

23 retailers€7,043 EUR to €26,726 EUR

A
Cheapest Retailer
-
€7,043 EUR
$7,868 USD
A
Retailer 2
-
€7,255 EUR
$8,105 USD
View
A
Retailer 3
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€7,888 EUR
$8,812 USD
View
Final sale: no returns
A
Retailer 4
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€8,169 EUR
$9,126 USD
View
A
Retailer 5
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€8,190 EUR
$9,150 USD
View
A
Retailer 6
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€8,433 EUR
£7,419 GBP
View
A
Retailer 7
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€8,628 EUR
$9,639 USD
View
A
Retailer 8
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€9,087 EUR
$10,152 USD
View
A
Retailer 9
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€9,187 EUR
$10,264 USD
View
A
Retailer 10
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€9,324 EUR
$10,417 USD
View
A
Retailer 11
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€9,577 EUR
$10,700 USD
View
Retailer 12
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€9,623 EUR
$10,751 USD
View
Price last confirmed 15 days ago
A
Retailer 13
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€10,075 EUR
£8,863 GBP
View
A
Retailer 14
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€11,128 EUR
$12,432 USD
View
A
Retailer 15
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€11,704 EUR
£10,296 GBP
View
A
Retailer 16
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€14,489 EUR
View
A
Retailer 17
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€14,943 EUR
$16,694 USD
View
A
Retailer 18
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€15,246 EUR
£13,412 GBP
View
A
Retailer 19
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€16,597 EUR
ZAR 299,555 ZAR
View
Retailer 20
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€19,977 EUR
A$34,336 AUD
View
Price last confirmed 9 days ago
Retailer 21
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€21,542 EUR
A$37,026 AUD
View
Price last confirmed 23 days ago
B+
Retailer 22
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€22,746 EUR
$25,412 USD
View
Most Expensive
B
Taylor and Hart
AC4DQ7Q · Oct 30
€26,726 EUR
$29,858 USD
View
22 more retailers have this diamond
Prices start from €7,043 EURSave up to €19,683 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
5.10ct Radiant
€7,043 EUR