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Round|Lab Grown|IGI

1.62ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG523263853

Shape and cutting style on the report: Round brilliant

Certificate IGI LG523263853

Diamond specifications and retailer prices

From £150 GBP
$201 USD
As of October 29, 2026
Save £721 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £871 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.62ct lab-grown round diamond

This 1.62ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG523263853 or 523263853. Listed at 15 retailers as of October 26, 2026, with prices from £150 to £871, a £721 spread on the same certified stone. MOH London lists it at £871. 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

1.62
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523263853
Dimensions7.52 × 7.49 × 4.65 mm
L/W Ratio1.00
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
7.52 mm7.49 mm1.62 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523263853
Side View
Table 57.5%Crown 35.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £871 GBP|Low: £144 GBP|High: £881 GBP|Avg: £389 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 5£150 GBP
Retailer 8£168 GBP
Retailer 7£186 GBP
Retailer 6£245 GBP
Retailer 2£311 GBP
Retailer 3£340 GBP
Retailer 9£381 GBP
Retailer 4£600 GBP
Retailer 10£608 GBP
MOH London£871 GBP

43 data points across 10 retailers

15 retailers£150 GBP to £871 GBP

A
Cheapest Retailer
-
£150 GBP
$201 USD
A
Retailer 2
-
£168 GBP
$225 USD
View
Final sale: no returns
A
Retailer 3
-
£174 GBP
$233 USD
View
A
Retailer 4
-
£186 GBP
$249 USD
View
A
Retailer 5
-
£186 GBP
$249 USD
View
A
Retailer 6
-
£210 GBP
HK$2,200 HKD
View
B+
Retailer 7
-
£245 GBP
$328 USD
View
A
Retailer 8
-
£311 GBP
€397 EUR
View
A
Retailer 9
-
£340 GBP
View
A
Retailer 10
-
£368 GBP
$493 USD
View
A
Retailer 11
-
£381 GBP
$510 USD
View
B
Retailer 12
-
£598 GBP
$801 USD
View
B
Retailer 13
-
£600 GBP
$804 USD
View
B
Retailer 14
-
£608 GBP
SGD 1,100 SGD
View
Most Expensive
B
MOH London
LG523263853 · Oct 26
£871 GBP
View
14 more retailers have this diamond
Prices start from £150 GBPSave up to £721 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
1.62ct Round
£150 GBP