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Radiant|Lab Grown|IGI

1.79ct F SI1 Radiant Lab Grown Diamond

GD • F/SI1 • IGI LG612339021

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

Certificate IGI LG612339021

Diamond specifications and retailer prices

From £141 GBP
$189 USD
As of October 27, 2026
Save £1,215 GBP (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,356 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.79ct lab-grown radiant diamond

This 1.79ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG612339021 or 612339021. Listed at 12 retailers as of October 27, 2026, with prices from £141 to £1,356, a £1,215 spread on the same certified stone. Do Amore Diamonds lists it at £1,356. 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

1.79
Carat
F
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG612339021
Dimensions8.59 × 5.93 × 4.06 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.59 mm5.93 mm1.79 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG612339021
Side View
Table 65.0%Crown 41.9°Girdle: MediumPavilion 35.3°Culet: NoneDepth 68.5%

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: Oct 27
Current: £1,356 GBP|Low: £141 GBP|High: £1,408 GBP|Avg: £600 GBP|-3.7%
Do Amore Diamonds
Retailer 2
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Retailer 7
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Retailer 11
Retailer 12
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Retailer 17
October 29, 2026
Retailer 13£141 GBP
Retailer 3£164 GBP
Retailer 11£164 GBP
Retailer 10£249 GBP
Retailer 7£273 GBP
Retailer 15£308 GBP
Retailer 6£413 GBP
Retailer 9£524 GBP
Retailer 12£565 GBP
Retailer 14£621 GBP
Retailer 5£633 GBP
Retailer 2£778 GBP
Retailer 17£812 GBP
Retailer 8£897 GBP
Retailer 16£969 GBP
Retailer 4£1,103 GBP
Do Amore Diamonds£1,356 GBP

24 data points across 17 retailers

12 retailers£141 GBP to £1,356 GBP

A
Cheapest Retailer
-
£141 GBP
$189 USD
A
Retailer 2
-
£164 GBP
$220 USD
View
B+
Retailer 3
-
£164 GBP
$220 USD
View
Final sale: no returns
A
Retailer 4
-
£249 GBP
View
B+
Retailer 5
-
£308 GBP
$413 USD
View
Retailer 6
-
£565 GBP
$758 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
£621 GBP
$833 USD
View
B
Retailer 8
-
£778 GBP
View
B
Retailer 9
-
£812 GBP
$1,089 USD
View
B
Retailer 10
-
£969 GBP
$1,300 USD
View
B
Retailer 11
-
£1,103 GBP
$1,480 USD
View
Most Expensive
B
Do Amore Diamonds
27-B24787836 · Oct 29
£1,356 GBP
$1,820 USD
View
11 more retailers have this diamond
Prices start from £141 GBPSave up to £1,215 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
1.79ct Radiant
£141 GBP