CaratHunter
Plans
Round|Lab Grown|IGI

1.60ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG440012128

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440012128

Diamond specifications and retailer prices

From £672 GBP
$900 USD
As of October 30, 2026
Save £2,985 GBP (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,657 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.6ct lab-grown round diamond

This 1.6ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012128 or 440012128. Listed at 10 retailers as of October 29, 2026, with prices from £672 to £3,657, a £2,985 spread on the same certified stone. MOH London lists it at £3,657. 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

1.60
Carat
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012128
Dimensions7.47 × 7.44 × 4.65 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
7.47 mm7.44 mm1.60 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440012128
Side View
Table 55.5%Crown 35.8°Girdle: MediumPavilion 40.3°Culet: NoneDepth 62.4%

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 30
Current: £3,657 GBP|Low: £672 GBP|High: £3,686 GBP|Avg: £1,787 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2£672 GBP
Retailer 3£976 GBP
Retailer 5£1,093 GBP
Retailer 8£1,306 GBP
Retailer 7£1,562 GBP
Retailer 4£1,790 GBP
Retailer 6£2,110 GBP
Retailer 9£2,534 GBP
MOH London£3,657 GBP

15 data points across 9 retailers

10 retailers£672 GBP to £3,657 GBP

A
Cheapest Retailer
-
£672 GBP
$900 USD
A
Retailer 2
-
£976 GBP
$1,308 USD
View
B+
Retailer 3
-
£1,062 GBP
$1,423 USD
View
B+
Retailer 4
-
£1,093 GBP
$1,464 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,132 GBP
$1,517 USD
View
Retailer 6
-
£1,132 GBP
$1,517 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
£1,790 GBP
$2,399 USD
View
B
Retailer 8
-
£2,110 GBP
$2,827 USD
View
B
Retailer 9
-
£2,122 GBP
$2,843 USD
View
Most Expensive
B
MOH London
LG440012128 · Oct 29
£3,657 GBP
View
9 more retailers have this diamond
Prices start from £672 GBPSave up to £2,985 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
1.60ct Round
£672 GBP