CaratHunter
Plans
Round|Lab Grown|IGI

1.58ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG526280927

Shape and cutting style on the report: Round brilliant

Certificate IGI LG526280927

Diamond specifications and retailer prices

From £150 GBP
$200 USD
As of October 29, 2026
Save £723 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £874 GBP at MOH London · As of October 29, 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 LG526280927 or 526280927. Listed at 16 retailers as of October 29, 2026, with prices from £150 to £874, a £723 spread on the same certified stone. MOH London lists it at £874. 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 angle35.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526280927
Dimensions7.46 × 7.43 × 4.60 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
7.46 mm7.43 mm1.58 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526280927
Side View
Table 56.5%Crown 35.7°Girdle: MediumPavilion 40.4°Culet: NoneDepth 61.9%

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: £874 GBP|Low: £144 GBP|High: £879 GBP|Avg: £364 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 10£150 GBP
Retailer 5£168 GBP
Retailer 3£174 GBP
Retailer 11£186 GBP
Retailer 12£254 GBP
Retailer 2£291 GBP
Retailer 7£315 GBP
Retailer 6£339 GBP
Retailer 13£381 GBP
Retailer 4£598 GBP
Retailer 9£600 GBP
Retailer 8£607 GBP
MOH London£874 GBP

43 data points across 13 retailers

16 retailers£150 GBP to £874 GBP

A
Cheapest Retailer
-
£150 GBP
$200 USD
A
Retailer 2
-
£168 GBP
$224 USD
View
Final sale: no returns
A
Retailer 3
-
£174 GBP
$232 USD
View
A
Retailer 4
-
£186 GBP
$248 USD
View
A
Retailer 5
-
£186 GBP
$248 USD
View
A
Retailer 6
-
£211 GBP
HK$2,200 HKD
View
B+
Retailer 7
-
£254 GBP
$338 USD
View
A
Retailer 8
-
£291 GBP
View
A
Retailer 9
-
£315 GBP
€399 EUR
View
A
Retailer 10
-
£339 GBP
View
A
Retailer 11
-
£381 GBP
$507 USD
View
Retailer 12
-
£563 GBP
$750 USD
View
Price last confirmed 50 days ago
B+
Retailer 13
-
£598 GBP
$796 USD
View
B
Retailer 14
-
£600 GBP
$799 USD
View
B+
Retailer 15
-
£607 GBP
SGD 1,092 SGD
View
Most Expensive
B
MOH London
LG526280927 · Oct 29
£874 GBP
View
15 more retailers have this diamond
Prices start from £150 GBPSave up to £723 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
£150 GBP