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Radiant|Lab Grown|IGI

6.00ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG839611721

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

Certificate IGI LG839611721

Diamond specifications and retailer prices

From £705 GBP
$944 USD
As of October 27, 2026
Save £6,065 GBP (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £6,769 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 6ct lab-grown radiant diamond

This 6ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG839611721 or 839611721. Listed at 13 retailers as of October 27, 2026, with prices from £705 to £6,769, a £6,065 spread on the same certified stone. Brilliant Earth lists it at £6,769. 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

6.00
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.1°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839611721
Dimensions13.27 × 8.66 × 5.74 mm
L/W Ratio1.53
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.27 mm8.66 mm6.00 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839611721
Side View
Table 69.0%Crown 48.1°Girdle: Slightly ThickPavilion 31.9°Culet: NoneDepth 66.3%

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: £6,769 GBP|Low: £705 GBP|High: £6,821 GBP|Avg: £2,760 GBP|-0.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 28, 2026
Retailer 3£705 GBP
Retailer 7£797 GBP
Retailer 11£850 GBP
Retailer 6£881 GBP
Retailer 13£1,105 GBP
Retailer 8£1,115 GBP
Retailer 4£1,174 GBP
Retailer 10£1,678 GBP
Retailer 12£2,452 GBP
Retailer 5£2,520 GBP
Retailer 9£2,739 GBP
Retailer 2£2,746 GBP
Brilliant Earth£6,769 GBP

27 data points across 13 retailers

13 retailers£705 GBP to £6,769 GBP

A
Cheapest Retailer
-
£705 GBP
$944 USD
Final sale: no returns
A
Retailer 2
-
£797 GBP
View
A
Retailer 3
-
£850 GBP
HK$8,900 HKD
View
A
Retailer 4
-
£881 GBP
$1,180 USD
View
B+
Retailer 5
-
£1,105 GBP
€1,410 EUR
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£1,115 GBP
View
B+
Retailer 7
-
£1,174 GBP
$1,573 USD
View
B+
Retailer 8
-
£1,678 GBP
$2,248 USD
View
B
Retailer 9
-
£2,452 GBP
SGD 4,440 SGD
View
B
Retailer 10
-
£2,520 GBP
$3,376 USD
View
B
Retailer 11
-
£2,739 GBP
View
B
Retailer 12
-
£2,746 GBP
$3,680 USD
View
Most Expensive
B
Brilliant Earth
21808178A · Oct 29
£6,769 GBP
$9,070 USD
View
12 more retailers have this diamond
Prices start from £705 GBPSave up to £6,065 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
6.00ct Radiant
£705 GBP