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Round|Lab Grown|IGI

0.99ct E SI2 Round Lab Grown Diamond

VG • E/SI2 • IGI LG727519412

Shape and cutting style on the report: Round brilliant

Certificate IGI LG727519412

Diamond specifications and retailer prices

From £86 GBP
$115 USD
As of October 29, 2026
Save £835 GBP (91%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £921 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG727519412 or 727519412. Listed at 13 retailers as of October 26, 2026, with prices from £86 to £921, a £835 spread on the same certified stone. MOH London lists it at £921. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle37.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727519412
Dimensions6.29 × 6.21 × 3.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.29 mm6.21 mm0.99 ctE / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG727519412
Side View
Table 58.0%Crown 37.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.3%

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 29
Current: £921 GBP|Low: £81 GBP|High: £945 GBP|Avg: £278 GBP|-2.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 2£86 GBP
Retailer 5£96 GBP
Retailer 12£117 GBP
Retailer 8£191 GBP
Retailer 6£196 GBP
Retailer 4£203 GBP
Retailer 9£210 GBP
Retailer 11£273 GBP
Retailer 10£285 GBP
Retailer 7£293 GBP
Retailer 3£526 GBP
MOH London£921 GBP

24 data points across 12 retailers

13 retailers£86 GBP to £921 GBP

A
Cheapest Retailer
-
£86 GBP
$115 USD
A
Retailer 2
-
£96 GBP
$128 USD
View
Final sale: no returns
A
Retailer 3
-
£103 GBP
$137 USD
View
A
Retailer 4
-
£117 GBP
$156 USD
View
A
Retailer 5
-
£191 GBP
$255 USD
View
A
Retailer 6
-
£196 GBP
€249 EUR
View
B+
Retailer 7
-
£210 GBP
$279 USD
View
B+
Retailer 8
-
£273 GBP
$363 USD
View
Retailer 9
-
£285 GBP
$380 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£293 GBP
$390 USD
View
Retailer 11
-
£354 GBP
$472 USD
View
Price last confirmed 44 days ago
B
Retailer 12
-
£526 GBP
$700 USD
View
Most Expensive
B
MOH London
LG727519412 · Oct 26
£921 GBP
View
12 more retailers have this diamond
Prices start from £86 GBPSave up to £835 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
£86 GBP