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Round|Lab Grown|IGI

1.58ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG829610661

Shape and cutting style on the report: Round brilliant

Certificate IGI LG829610661

Diamond specifications and retailer prices

From £146 GBP
$195 USD
As of October 26, 2026
Save £703 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £850 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.58ct lab-grown round diamond

This 1.58ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG829610661 or 829610661. Listed at 15 retailers as of October 26, 2026, with prices from £146 to £850, a £703 spread on the same certified stone. MOH London lists it at £850. 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

1.58
Carat
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG829610661
Dimensions7.52 × 7.47 × 4.59 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
7.52 mm7.47 mm1.58 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG829610661
Side View
Table 58.0%Crown 34.8°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 26
Current: £850 GBP|Low: £142 GBP|High: £880 GBP|Avg: £395 GBP|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 4£146 GBP
Retailer 14£164 GBP
Retailer 13£170 GBP
Retailer 15£182 GBP
Retailer 11£202 GBP
Retailer 10£283 GBP
Retailer 2£296 GBP
Retailer 5£317 GBP
Retailer 9£329 GBP
Retailer 3£462 GBP
Retailer 12£466 GBP
Retailer 8£559 GBP
Retailer 6£583 GBP
Retailer 7£646 GBP
MOH London£850 GBP

43 data points across 15 retailers

15 retailers£146 GBP to £850 GBP

A
Cheapest Retailer
-
£146 GBP
$195 USD
A
Retailer 2
-
£164 GBP
$218 USD
View
Final sale: no returns
A
Retailer 3
-
£170 GBP
$226 USD
View
A
Retailer 4
-
£182 GBP
$242 USD
View
A
Retailer 5
-
£202 GBP
HK$2,100 HKD
View
A
Retailer 6
-
£283 GBP
View
A
Retailer 7
-
£296 GBP
€375 EUR
View
B+
Retailer 8
-
£317 GBP
$422 USD
View
A
Retailer 9
-
£329 GBP
View
B+
Retailer 10
-
£462 GBP
$615 USD
View
B+
Retailer 11
-
£466 GBP
$621 USD
View
B+
Retailer 12
-
£559 GBP
$745 USD
View
B
Retailer 13
-
£583 GBP
$777 USD
View
B
Retailer 14
-
£646 GBP
$860 USD
View
Most Expensive
B
MOH London
LG829610661 · Oct 26
£850 GBP
View
14 more retailers have this diamond
Prices start from £146 GBPSave up to £703 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
1.58ct Round
£146 GBP