CaratHunter
Plans
Radiant|Lab Grown|IGI

3.91ct D VS1 Radiant Lab Grown Diamond

GD • D/VS1 • IGI LG708563402

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

Certificate IGI LG708563402

Diamond specifications and retailer prices

From £602 GBP
$807 USD
As of October 29, 2026
Save £5,779 GBP (91%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,381 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.91ct lab-grown radiant diamond

This 3.91ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG708563402 or 708563402. Listed at 17 retailers as of October 29, 2026, with prices from £602 to £6,381, a £5,779 spread on the same certified stone. Brilliant Earth lists it at £6,381. 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

3.91
Carat
D
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG708563402
Dimensions11.00 × 7.89 × 5.26 mm
L/W Ratio1.39
Culet sizePointed
Top View
11.00 mm7.89 mm3.91 ctD / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG708563402
Side View
Table 68.0%Crown 39.3°Girdle: MediumPavilion 35.2°Culet: NoneDepth 66.7%

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 29
Current: £6,381 GBP|Low: £602 GBP|High: £6,381 GBP|Avg: £1,957 GBP
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
Retailer 14
Retailer 15
October 31, 2026
Retailer 6£602 GBP
Retailer 3£776 GBP
Retailer 8£873 GBP
Retailer 7£875 GBP
Retailer 15£1,041 GBP
Retailer 5£1,233 GBP
Retailer 2£1,525 GBP
Retailer 13£1,553 GBP
Retailer 10£1,656 GBP
Retailer 4£2,284 GBP
Retailer 12£2,584 GBP
Retailer 14£2,836 GBP
Retailer 11£4,028 GBP
Retailer 9£4,739 GBP
Brilliant Earth£6,381 GBP

25 data points across 15 retailers

17 retailers£602 GBP to £6,381 GBP

A
Cheapest Retailer
-
£602 GBP
$807 USD
Final sale: no returns
Retailer 2
-
£628 GBP
$842 USD
View
Price last confirmed 33 days ago
A
Retailer 3
-
£776 GBP
$1,040 USD
View
B+
Retailer 4
-
£873 GBP
$1,170 USD
View
A
Retailer 5
-
£875 GBP
$1,173 USD
View
Retailer 6
-
£1,041 GBP
€1,329 EUR
View
Price last confirmed 7 days ago
B+
Retailer 7
-
£1,233 GBP
$1,652 USD
View
B+
Retailer 8
-
£1,525 GBP
$2,043 USD
View
Retailer 9
-
£1,553 GBP
A$3,202 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£1,656 GBP
$2,219 USD
View
Retailer 11
-
£2,284 GBP
A$4,708 AUD
View
Price last confirmed 22 days ago
B
Retailer 12
-
£2,584 GBP
View
Retailer 13
-
£2,836 GBP
$3,800 USD
View
Price last confirmed 12 days ago
B
Retailer 14
-
£4,026 GBP
$5,395 USD
View
B
Retailer 15
-
£4,028 GBP
$5,397 USD
View
B
Retailer 16
-
£4,739 GBP
$6,350 USD
View
Most Expensive
B
Brilliant Earth
16281928A · Oct 29
£6,381 GBP
$8,550 USD
View
16 more retailers have this diamond
Prices start from £602 GBPSave up to £5,779 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
3.91ct Radiant
£602 GBP