CaratHunter
Plans
Round|Lab Grown|IGI

0.91ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG447002224

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447002224

Diamond specifications and retailer prices

From £458 GBP
$610 USD
As of October 29, 2026
Save £2,070 GBP (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,528 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.91ct lab-grown round diamond

This 0.91ct lab-grown round sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447002224 or 447002224. Listed at 11 retailers as of October 29, 2026, with prices from £458 to £2,528, a £2,070 spread on the same certified stone. MOH London lists it at £2,528. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.91
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447002224
Dimensions6.12 × 6.17 × 3.87 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
6.12 mm6.17 mm0.91 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447002224
Side View
Table 55.0%Crown 35.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.0%

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: £2,528 GBP|Low: £458 GBP|High: £2,880 GBP|Avg: £1,191 GBP|+0.6%
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 7£458 GBP
Retailer 6£578 GBP
Retailer 11£629 GBP
Retailer 10£647 GBP
Retailer 8£671 GBP
Retailer 12£803 GBP
Retailer 3£1,037 GBP
Retailer 9£1,084 GBP
Retailer 2£1,159 GBP
Retailer 5£1,595 GBP
MOH London£2,528 GBP
Retailer 4£2,880 GBP

22 data points across 12 retailers

11 retailers£458 GBP to £2,528 GBP

A
Cheapest Retailer
-
£458 GBP
$610 USD
B+
Retailer 2
-
£578 GBP
$770 USD
View
B+
Retailer 3
-
£629 GBP
$838 USD
View
B+
Retailer 4
-
£647 GBP
$862 USD
View
Final sale: no returns
B+
Retailer 5
-
£671 GBP
$893 USD
View
Retailer 6
-
£671 GBP
$893 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
£1,084 GBP
$1,444 USD
View
B+
Retailer 8
-
£1,159 GBP
€1,470 EUR
View
B
Retailer 9
-
£1,595 GBP
$2,124 USD
View
B
Retailer 10
-
£1,886 GBP
$2,511 USD
View
Most Expensive
B
MOH London
LG447002224 · Oct 29
£2,528 GBP
View
10 more retailers have this diamond
Prices start from £458 GBPSave up to £2,070 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
0.91ct Round
£458 GBP