Radiant|Lab Grown|IGI

1.50ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG660484487

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

Certificate IGI LG660484487

Diamond specifications and retailer prices

From $306 USD
As of October 30, 2026
Save $2,755 USD (90%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $3,061 USD at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1.5ct lab-grown radiant diamond

This 1.5ct 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 LG660484487 or 660484487. Listed at 26 retailers as of October 30, 2026, with prices from $306 to $3,061, a $2,755 spread on the same certified stone. Diamond Quarter lists it at $3,061. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660484487
Dimensions8.27 × 5.67 × 3.74 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
8.27 mm5.67 mm1.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660484487
Side View
Table 65.0%Crown 43.3°Girdle: MediumPavilion 33.7°Culet: NoneDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $362 USD|Low: $294 USD|High: $3,390 USD|Avg: $1,092 USD|+5.8%
Retailer 1
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November 1, 2026
Retailer 4$306 USD
Retailer 25$355 USD
Retailer 1$362 USD
Retailer 3$379 USD
Retailer 15$435 USD
Retailer 8$535 USD
Retailer 24$535 USD
Retailer 20$617 USD
Retailer 13$638 USD
Retailer 23$652 USD
Retailer 19$674 USD
Retailer 14$851 USD
Retailer 22$884 USD
Retailer 9$1,000 USD
Retailer 6$1,165 USD
Retailer 5$1,219 USD
Retailer 16$1,266 USD
Retailer 17$1,274 USD
Retailer 11$1,458 USD
Retailer 12$1,520 USD
Retailer 10$1,531 USD
Retailer 7$1,623 USD
Retailer 18$1,676 USD
Retailer 2$2,570 USD
Retailer 21$2,820 USD

32 data points across 25 retailers

26 retailers$306 USD to $3,061 USD

A
Cheapest Retailer
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$306 USD
A
Retailer 2
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$355 USD
View
A
Retailer 3
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$362 USD
View
Final sale: no returns
A
Retailer 4
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$379 USD
View
A
Retailer 5
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$435 USD
HK$3,400 HKD
View
A
Retailer 6
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$535 USD
View
A
Retailer 7
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$535 USD
View
A
Retailer 8
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$617 USD
€588 EUR
View
A
Retailer 9
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$638 USD
View
A
Retailer 10
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$652 USD
ZAR 10,525 ZAR
View
A
Retailer 11
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$674 USD
£531 GBP
View
A
Retailer 12
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$851 USD
View
A
Retailer 13
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$884 USD
A$1,360 AUD
View
B+
Retailer 14
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$1,000 USD
View
B+
Retailer 15
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$1,165 USD
View
B+
Retailer 16
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$1,219 USD
View
B+
Retailer 17
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$1,266 USD
View
B+
Retailer 18
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$1,274 USD
SGD 1,721 SGD
View
B+
Retailer 19
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$1,458 USD
View
B+
Retailer 20
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$1,520 USD
£1,197 GBP
View
B+
Retailer 21
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$1,531 USD
View
Retailer 22
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$1,623 USD
A$2,497 AUD
View
Price last confirmed 24 days ago
B+
Retailer 23
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$1,676 USD
View
B
Retailer 24
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$2,570 USD
View
B
Retailer 25
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$2,820 USD
View
Most Expensive
B
Diamond Quarter
1.5IFDLG875A67N · Oct 31
$3,061 USD
£2,410 GBP
View
25 more retailers have this diamond
Prices start from $306 USDSave up to $2,755 USD

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
1.50ct Radiant
$306 USD