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Round|Lab Grown|IGI

1.36ct D SI1 Round Lab Grown Diamond

GD • D/SI1 • IGI LG713596155

Shape and cutting style on the report: Round brilliant

Certificate IGI LG713596155

Diamond specifications and retailer prices

From £303 GBP
€387 EUR
As of October 31, 2026
Save £503 GBP (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £836 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 1.36ct lab-grown round diamond

This 1.36ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG713596155 or 713596155. Listed at 7 retailers as of October 31, 2026, with a 166% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.36
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG713596155
Dimensions6.92 × 6.85 × 4.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
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
6.92 mm6.85 mm1.36 ctD / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG713596155
Side View
Table 56.0%Crown 38.4°Girdle: STK-THKPavilion 41.2°Culet: NoneDepth 65.8%

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 31
Current: £836 GBP|Low: £293 GBP|High: £842 GBP|Avg: £476 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3£303 GBP
Retailer 6£311 GBP
Retailer 2£321 GBP
Retailer 4£348 GBP
Retailer 7£422 GBP
Retailer 5£806 GBP
MOH London£836 GBP

39 data points across 7 retailers

7 retailers£303 GBP to £806 GBP

A
Cheapest Retailer
-
£303 GBP
€387 EUR
B+
Retailer 2
-
£311 GBP
$417 USD
View
B+
Retailer 3
-
£321 GBP
View
B+
Retailer 4
-
£348 GBP
$466 USD
View
B
Retailer 5
-
£422 GBP
$565 USD
View
C
Retailer 6
-
£806 GBP
$1,080 USD
View
Most Expensive
MOH London
LG713596155 · Oct 21
£836 GBP
View
Price last confirmed 11 days ago
6 more retailers have this diamond
Prices start from £303 GBPSave up to £503 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
1.36ct Round
£303 GBP