Round|Lab Grown|IGI

0.99ct E SI1 Round Lab Grown Diamond

VG • E/SI1 • IGI LG805673264

Shape and cutting style on the report: Round brilliant

Certificate IGI LG805673264

Diamond specifications and retailer prices

From £143 GBP
HK$1,500 HKD
As of October 30, 2026
Save £883 GBP (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,027 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.99ct lab-grown round diamond

This 0.99ct lab-grown round sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG805673264 or 805673264. Listed at 16 retailers as of October 26, 2026, with prices from £143 to £1,027, a £883 spread on the same certified stone. MOH London lists it at £1,027. 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

0.99
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805673264
Dimensions6.61 × 6.55 × 3.77 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.61 mm6.55 mm0.99 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG805673264
Side View
Table 65.0%Crown 32.6°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 57.3%

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 30
Current: £1,027 GBP|Low: £110 GBP|High: £1,047 GBP|Avg: £339 GBP|-2.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 11£110 GBP
Retailer 7£205 GBP
Retailer 4£212 GBP
Retailer 6£230 GBP
Retailer 9£232 GBP
Retailer 3£234 GBP
Retailer 8£280 GBP
Retailer 10£304 GBP
Retailer 2£336 GBP
Retailer 5£336 GBP
MOH London£1,027 GBP

43 data points across 11 retailers

16 retailers£143 GBP to £1,027 GBP

Retailer 1
-
£99 GBP
$133 USD
Price last confirmed 20 days ago
Retailer 2
-
£115 GBP
$154 USD
View
Price last confirmed 17 days ago
Retailer 3
-
£123 GBP
$165 USD
View
Price last confirmed 28 days ago
B+
Retailer 4
-
£143 GBP
HK$1,500 HKD
View
B+
Retailer 5
-
£205 GBP
View
A
Retailer 6
-
£212 GBP
€270 EUR
View
A
Retailer 7
-
£230 GBP
View
B+
Retailer 8
-
£232 GBP
$311 USD
View
B+
Retailer 9
-
£234 GBP
$313 USD
View
Retailer 10
-
£280 GBP
$375 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
£304 GBP
$407 USD
View
B+
Retailer 12
-
£336 GBP
$450 USD
View
B+
Retailer 13
-
£336 GBP
SGD 609 SGD
View
Retailer 14
-
£395 GBP
$529 USD
View
Price last confirmed 27 days ago
Retailer 15
-
£552 GBP
$740 USD
View
Price last confirmed 40 days ago
Most Expensive
B
MOH London
LG805673264 · Oct 26
£1,027 GBP
View
15 more retailers have this diamond
Prices start from £143 GBPSave up to £883 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
0.99ct Round
£143 GBP