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Radiant|Lab Grown|IGI

1.58ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG660484616

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

Certificate IGI LG660484616

Diamond specifications and retailer prices

From £216 GBP
As of November 2, 2026
Save £2,185 GBP (91%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £2,401 GBP at Diamond Quarter · As of November 2, 2026
View at Diamond Quarter

About this 1.58ct lab-grown radiant diamond

This 1.58ct 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 LG660484616 or 660484616. Listed at 27 retailers as of November 2, 2026, with prices from £216 to £2,401, a £2,185 spread on the same certified stone. Diamond Quarter lists it at £2,401. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.58
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660484616
Dimensions8.37 × 5.83 × 3.75 mm
L/W Ratio1.44
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
8.37 mm5.83 mm1.58 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660484616
Side View
Table 65.0%Crown 43°Girdle: MED-STKPavilion 32.3°Culet: NoneDepth 64.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: £384 GBP|Low: £208 GBP|High: £2,543 GBP|Avg: £851 GBP|-51.2%
Retailer 1
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November 4, 2026
Retailer 4£216 GBP
Retailer 25£251 GBP
Retailer 24£258 GBP
Retailer 3£268 GBP
Retailer 1£384 GBP
Retailer 16£391 GBP
Retailer 7£418 GBP
Retailer 14£465 GBP
Retailer 21£481 GBP
Retailer 19£511 GBP
Retailer 12£523 GBP
Retailer 9£638 GBP
Retailer 15£668 GBP
Retailer 23£690 GBP
Retailer 6£825 GBP
Retailer 5£953 GBP
Retailer 11£1,032 GBP
Retailer 17£1,073 GBP
Retailer 10£1,102 GBP
Retailer 18£1,145 GBP
Retailer 20£1,187 GBP
Retailer 8£1,280 GBP
Retailer 2£1,831 GBP
Retailer 13£1,924 GBP
Retailer 22£2,207 GBP

36 data points across 25 retailers

27 retailers£216 GBP to £2,401 GBP

A
Cheapest Retailer
-
£216 GBP
A
Retailer 2
-
£251 GBP
View
A
Retailer 3
-
£258 GBP
View
Final sale: no returns
A
Retailer 4
-
£268 GBP
View
A
Retailer 5
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£384 GBP
View
A
Retailer 6
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£391 GBP
View
A
Retailer 7
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£418 GBP
View
A
Retailer 8
-
£465 GBP
View
A
Retailer 9
-
£481 GBP
View
A
Retailer 10
-
£511 GBP
View
A
Retailer 11
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£523 GBP
View
A
Retailer 12
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£638 GBP
View
A
Retailer 13
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£668 GBP
View
A
Retailer 14
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£690 GBP
View
B+
Retailer 15
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£825 GBP
View
B+
Retailer 16
-
£953 GBP
View
B+
Retailer 17
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£1,032 GBP
View
B+
Retailer 18
-
£1,073 GBP
View
B+
Retailer 19
-
£1,102 GBP
View
B+
Retailer 20
-
£1,145 GBP
View
B+
Retailer 21
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£1,187 GBP
View
Retailer 22
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£1,280 GBP
View
Price last confirmed 30 days ago
B
Retailer 23
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£1,831 GBP
View
Retailer 24
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£1,879 GBP
View
Price last confirmed 37 days ago
B
Retailer 25
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£1,924 GBP
View
B
Retailer 26
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£2,207 GBP
View
Most Expensive
B
Diamond Quarter
1.58IFDLG16B3CAN · Nov 2
£2,401 GBP
View
26 more retailers have this diamond
Prices start from £216 GBPSave up to £2,185 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
1.58ct Radiant
£216 GBP