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Round|Lab Grown|IGI

1.36ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG660459704

Certificate IGI LG660459704

Diamond specifications and retailer prices

From £702 GBP
$940 USD
As of October 30, 2026
Save £425 GBP (38%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,127 GBP at Jared · As of October 30, 2026
View at Jared

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 top-tier cut grade and certified by IGI LG660459704 or 660459704. Listed at 3 retailers as of October 30, 2026, with prices from £702 to £1,127, a £425 spread on the same certified stone. Jared lists it at £1,127. 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

1.36
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG660459704
Dimensions7.11 × 7.13 mm
L/W Ratio1.00
Top View
7.11 mm7.13 mm1.36 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660459704
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,127 GBP|Low: £702 GBP|High: £1,127 GBP|Avg: £895 GBP
Jared
Retailer 2
Retailer 3
July 2, 2026
Retailer 2£702 GBP
Retailer 3£702 GBP
Jared£1,127 GBP

9 data points across 3 retailers

3 retailers£702 GBP to £1,127 GBP

B
Cheapest Retailer
-
£702 GBP
$940 USD
B
Retailer 2
-
£702 GBP
$940 USD
View
Most Expensive
B
Jared
154726446 · Oct 30
£1,127 GBP
$1,510 USD
View
2 more retailers have this diamond
Prices start from £702 GBPSave up to £425 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.

B
1.36ct Round
£702 GBP