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Radiant|Lab Grown|IGI

1.50ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG669419039

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

Certificate IGI LG669419039

Diamond specifications and retailer prices

From £228 GBP
$306 USD
As of November 2, 2026
Save £2,053 GBP (90%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £2,281 GBP 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 very-good cut grade and certified by IGI LG669419039 or 669419039. Listed at 26 retailers as of October 31, 2026, with prices from £228 to £2,281, a £2,053 spread on the same certified stone. Diamond Quarter lists it at £2,281. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669419039
Dimensions8.13 × 5.83 × 3.86 mm
L/W Ratio1.39
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
8.13 mm5.83 mm1.50 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669419039
Side View
Table 59.0%Crown 40.9°Girdle: MediumPavilion 34.5°Culet: NoneDepth 66.2%

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: Nov 2
Current: £498 GBP|Low: £219 GBP|High: £3,234 GBP|Avg: £821 GBP|+0.2%
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November 2, 2026
Retailer 4£228 GBP
Retailer 24£265 GBP
Retailer 18£270 GBP
Retailer 3£282 GBP
Retailer 15£324 GBP
Retailer 8£399 GBP
Retailer 23£399 GBP
Retailer 20£460 GBP
Retailer 13£475 GBP
Retailer 12£487 GBP
Retailer 1£498 GBP
Retailer 14£634 GBP
Retailer 22£659 GBP
Retailer 9£745 GBP
Retailer 6£868 GBP
Retailer 5£908 GBP
Retailer 16£943 GBP
Retailer 17£949 GBP
Retailer 11£1,086 GBP
Retailer 19£1,133 GBP
Retailer 10£1,141 GBP
Retailer 7£1,209 GBP
Retailer 2£1,915 GBP
Retailer 21£2,101 GBP

32 data points across 24 retailers

26 retailers£228 GBP to £2,281 GBP

A
Cheapest Retailer
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£228 GBP
$306 USD
A
Retailer 2
-
£265 GBP
$355 USD
View
A
Retailer 3
-
£270 GBP
$362 USD
View
Final sale: no returns
A
Retailer 4
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£282 GBP
$379 USD
View
A
Retailer 5
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£324 GBP
HK$3,400 HKD
View
A
Retailer 6
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£399 GBP
$535 USD
View
A
Retailer 7
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£399 GBP
$535 USD
View
A
Retailer 8
-
£460 GBP
€588 EUR
View
A
Retailer 9
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£475 GBP
$638 USD
View
A
Retailer 10
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£487 GBP
ZAR 10,563 ZAR
View
A
Retailer 11
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£498 GBP
View
A
Retailer 12
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£634 GBP
$851 USD
View
A
Retailer 13
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£659 GBP
A$1,360 AUD
View
B+
Retailer 14
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£745 GBP
$1,000 USD
View
B+
Retailer 15
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£868 GBP
$1,165 USD
View
B+
Retailer 16
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£908 GBP
$1,219 USD
View
B+
Retailer 17
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£943 GBP
$1,266 USD
View
B+
Retailer 18
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£949 GBP
SGD 1,721 SGD
View
B+
Retailer 19
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£1,086 GBP
$1,458 USD
View
B+
Retailer 20
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£1,133 GBP
View
B+
Retailer 21
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£1,141 GBP
$1,531 USD
View
Retailer 22
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£1,209 GBP
A$2,497 AUD
View
Price last confirmed 25 days ago
B
Retailer 23
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£1,249 GBP
$1,676 USD
View
B
Retailer 24
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£1,915 GBP
$2,570 USD
View
B
Retailer 25
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£2,101 GBP
$2,820 USD
View
Most Expensive
B
Diamond Quarter
1.5IFDLG395197N · Oct 31
£2,281 GBP
View
25 more retailers have this diamond
Prices start from £228 GBPSave up to £2,053 GBP

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
£228 GBP