CaratHunter
Plans
Radiant|Lab Grown|IGI

1.58ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG668432793

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

Certificate IGI LG668432793

Diamond specifications and retailer prices

From £239 GBP
As of November 2, 2026
Save £2,162 GBP (90%) vs most expensive(unlock to see where)
26 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 LG668432793 or 668432793. Listed at 26 retailers as of November 2, 2026, with prices from £239 to £2,401, a £2,162 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 angle43.9°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG668432793
Dimensions8.16 × 5.90 × 3.88 mm
L/W Ratio1.38
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
8.16 mm5.90 mm1.58 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG668432793
Side View
Table 64.0%Crown 43.9°Girdle: MediumPavilion 34.2°Culet: NoneDepth 65.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £267 GBP|Low: £239 GBP|High: £2,558 GBP|Avg: £819 GBP|-6.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 3, 2026
Retailer 5£239 GBP
Retailer 1£267 GBP
Retailer 2£277 GBP
Retailer 4£297 GBP
Retailer 15£343 GBP
Retailer 19£410 GBP
Retailer 8£418 GBP
Retailer 18£481 GBP
Retailer 13£491 GBP
Retailer 16£511 GBP
Retailer 12£523 GBP
Retailer 14£668 GBP
Retailer 22£690 GBP
Retailer 9£821 GBP
Retailer 7£869 GBP
Retailer 6£953 GBP
Retailer 11£1,139 GBP
Retailer 10£1,177 GBP
Retailer 17£1,187 GBP
Retailer 20£1,258 GBP
Retailer 3£1,916 GBP
Retailer 21£2,215 GBP

33 data points across 22 retailers

26 retailers£239 GBP to £2,401 GBP

A
Cheapest Retailer
-
£239 GBP
A
Retailer 2
-
£267 GBP
View
Final sale: no returns
A
Retailer 3
-
£277 GBP
View
A
Retailer 4
-
£297 GBP
View
A
Retailer 5
-
£343 GBP
View
A
Retailer 6
-
£410 GBP
View
A
Retailer 7
-
£418 GBP
View
A
Retailer 8
-
£481 GBP
View
A
Retailer 9
-
£491 GBP
View
A
Retailer 10
-
£511 GBP
View
A
Retailer 11
-
£523 GBP
View
A
Retailer 12
-
£668 GBP
View
A
Retailer 13
-
£690 GBP
View
B+
Retailer 14
-
£821 GBP
View
B+
Retailer 15
-
£869 GBP
View
B+
Retailer 16
-
£953 GBP
View
B+
Retailer 17
-
£987 GBP
View
B+
Retailer 18
-
£992 GBP
View
B+
Retailer 19
-
£1,139 GBP
View
B+
Retailer 20
-
£1,177 GBP
View
B+
Retailer 21
-
£1,187 GBP
View
B+
Retailer 22
-
£1,258 GBP
View
B+
Retailer 23
-
£1,317 GBP
View
B
Retailer 24
-
£1,916 GBP
View
B
Retailer 25
-
£2,215 GBP
View
Most Expensive
B
Diamond Quarter
1.58IFDLG93F81EN · Nov 2
£2,401 GBP
View
25 more retailers have this diamond
Prices start from £239 GBPSave up to £2,162 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
£239 GBP