CaratHunter
Plans
Radiant|Lab Grown|IGI

1.04ct F SI1 Radiant Lab Grown Diamond

GD • F/SI1 • IGI LG670460835

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

Certificate IGI LG670460835

Diamond specifications and retailer prices

From £322 GBP
As of November 6, 2026
Save £56 GBP (15%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £378 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.04ct lab-grown radiant diamond

This 1.04ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG670460835 or 670460835. Listed at 2 retailers as of November 5, 2026, with prices from £322 to £378, a £56 spread on the same certified stone. Diamond Quarter lists it at £378. 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

1.04
Carat
F
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670460835
Dimensions7.25 × 4.79 × 3.40 mm
L/W Ratio1.51
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.25 mm4.79 mm1.04 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670460835
Side View
Table 63.0%Crown 44.4°Girdle: MediumPavilion 35.2°Culet: NoneDepth 71.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £322 GBP|Low: £317 GBP|High: £459 GBP|Avg: £363 GBP|-29.9%
September 23, 2026
Retailer 1£322 GBP

4 data points across 1 retailer

2 retailers£322 GBP to £378 GBP

B+
Cheapest Retailer
-
£322 GBP
Most Expensive
B
Diamond Quarter
1.04SI1FLG351475N · Nov 5
£378 GBP
View
1 more retailer has this diamond
Prices start from £322 GBPSave up to £56 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.

B+
1.04ct Radiant
£322 GBP