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Radiant|Lab Grown|IGI

1.51ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG665410249

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

Certificate IGI LG665410249

Diamond specifications and retailer prices

From €250 EUR
$279 USD
As of October 30, 2026
Save €2,508 EUR (91%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: €2,758 EUR at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG665410249 or 665410249. Listed at 32 retailers as of October 30, 2026, with prices from €250 to €2,758, a €2,508 spread on the same certified stone. Diamond Quarter lists it at €2,758. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665410249
Dimensions8.44 × 5.69 × 3.64 mm
L/W Ratio1.48
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
8.44 mm5.69 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665410249
Side View
Table 62.0%Crown 43.3°Girdle: MED-STKPavilion 33°Culet: NoneDepth 64.0%

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: €1,369 EUR|Low: €250 EUR|High: €2,918 EUR|Avg: €1,038 EUR|-5.0%
Retailer 1
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Retailer 22
November 1, 2026
Retailer 4€250 EUR
Retailer 21€296 EUR
Retailer 20€456 EUR
Retailer 13€458 EUR
Retailer 5€482 EUR
Retailer 10€543 EUR
Retailer 16€555 EUR
Retailer 19€587 EUR
Retailer 12€607 EUR
Retailer 6€703 EUR
Retailer 11€767 EUR
Retailer 18€796 EUR
Retailer 2€951 EUR
Retailer 8€1,189 EUR
Retailer 14€1,244 EUR
Retailer 7€1,290 EUR
Retailer 15€1,327 EUR
Retailer 1€1,369 EUR
Retailer 3€1,466 EUR
Retailer 9€2,211 EUR
Retailer 22€2,215 EUR
Retailer 17€2,533 EUR

36 data points across 22 retailers

32 retailers€250 EUR to €2,758 EUR

A
Cheapest Retailer
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€250 EUR
$279 USD
Retailer 2
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€250 EUR
$279 USD
View
Price last confirmed 24 days ago
Retailer 3
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€260 EUR
$290 USD
View
Price last confirmed 32 days ago
A
Retailer 4
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€296 EUR
$331 USD
View
Final sale: no returns
Retailer 5
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€302 EUR
$337 USD
View
Price last confirmed 35 days ago
Retailer 6
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€310 EUR
$346 USD
View
Price last confirmed 29 days ago
Retailer 7
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€318 EUR
$355 USD
View
Price last confirmed 34 days ago
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Retailer 8
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€456 EUR
$510 USD
View
A
Retailer 9
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€458 EUR
HK$4,000 HKD
View
A
Retailer 10
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€482 EUR
$538 USD
View
A
Retailer 11
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€543 EUR
$607 USD
View
A
Retailer 12
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€555 EUR
View
A
Retailer 13
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€587 EUR
ZAR 10,589 ZAR
View
A
Retailer 14
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€607 EUR
£534 GBP
View
A
Retailer 15
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€703 EUR
$785 USD
View
A
Retailer 16
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€767 EUR
$857 USD
View
A
Retailer 17
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€796 EUR
A$1,368 AUD
View
B+
Retailer 18
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€951 EUR
$1,062 USD
View
Retailer 19
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€1,097 EUR
$1,226 USD
View
Price last confirmed 22 days ago
B+
Retailer 20
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€1,097 EUR
$1,226 USD
View
Retailer 21
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€1,143 EUR
$1,277 USD
View
Price last confirmed 32 days ago
B+
Retailer 22
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€1,189 EUR
$1,328 USD
View
B+
Retailer 23
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€1,244 EUR
$1,390 USD
View
B+
Retailer 24
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€1,290 EUR
$1,441 USD
View
B+
Retailer 25
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€1,327 EUR
SGD 2,004 SGD
View
B+
Retailer 26
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€1,369 EUR
£1,204 GBP
View
Retailer 27
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€1,466 EUR
A$2,519 AUD
View
Price last confirmed 24 days ago
B
Retailer 28
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€2,211 EUR
$2,470 USD
View
B
Retailer 29
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€2,215 EUR
$2,475 USD
View
Retailer 30
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€2,251 EUR
$2,515 USD
View
Price last confirmed 34 days ago
B
Retailer 31
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€2,533 EUR
$2,830 USD
View
Most Expensive
B
Diamond Quarter
1.51IFDLG49EB48N · Oct 31
€2,758 EUR
£2,426 GBP
View
31 more retailers have this diamond
Prices start from €250 EURSave up to €2,508 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
1.51ct Radiant
€250 EUR