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Radiant|Lab Grown|IGI

3.16ct E VVS1 Radiant Lab Grown Diamond

VG • E/VVS1 • IGI LG821655501

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

Certificate IGI LG821655501

Diamond specifications and retailer prices

From £1,254 GBP
As of October 29, 2026
Save £1,676 GBP (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £2,930 GBP at With Clarity · As of October 28, 2026
View at With Clarity

About this 3.16ct lab-grown radiant diamond

This 3.16ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG821655501 or 821655501. Listed at 7 retailers as of October 28, 2026, with prices from £1,254 to £2,930, a £1,676 spread on the same certified stone. With Clarity lists it at £2,930. 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

3.16
Carat
E
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821655501
Dimensions10.20 × 7.51 × 5.14 mm
L/W Ratio1.36
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
10.20 mm7.51 mm3.16 ctE / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821655501
Side View
Table 63.0%Crown 38.8°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 68.4%

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: £1,254 GBP|Low: £1,246 GBP|High: £2,872 GBP|Avg: £2,003 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
With Clarity
October 29, 2026
Retailer 1£1,254 GBP
Retailer 4£1,303 GBP
Retailer 3£1,373 GBP
Retailer 5£1,521 GBP
Retailer 2£2,774 GBP
Retailer 6£2,831 GBP
With Clarity£2,872 GBP

29 data points across 7 retailers

7 retailers£1,254 GBP to £2,930 GBP

A
Cheapest Retailer
-
£1,254 GBP
A
Retailer 2
-
£1,303 GBP
$1,735 USD
View
B+
Retailer 3
-
£1,373 GBP
€1,741 EUR
View
B+
Retailer 4
-
£1,521 GBP
$2,026 USD
View
B
Retailer 5
-
£2,774 GBP
View
B
Retailer 6
-
£2,831 GBP
$3,769 USD
View
Most Expensive
B
With Clarity
821655501 · Oct 28
£2,930 GBP
$3,902 USD
View
6 more retailers have this diamond
Prices start from £1,254 GBPSave up to £1,676 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
3.16ct Radiant
£1,254 GBP