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Round|Lab Grown|IGI

1.64ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG787640285

Certificate IGI LG787640285

Diamond specifications and retailer prices

From £1,014 GBP
$1,350 USD
As of October 28, 2026
Save £556 GBP (35%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,569 GBP at Jared · As of October 30, 2026
View at Jared

About this 1.64ct lab-grown round diamond

This 1.64ct 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 LG787640285 or 787640285. Listed at 3 retailers as of October 30, 2026, with prices from £1,014 to £1,569, a £556 spread on the same certified stone. Jared lists it at £1,569. 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

1.64
Carat
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG787640285
Dimensions7.54 × 7.60 mm
L/W Ratio1.01
Top View
7.54 mm7.60 mm1.64 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787640285
Side View
Table 60.0%CrownGirdle: MediumPavilionCulet: NoneDepth 61.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: £1,569 GBP|Low: £1,014 GBP|High: £1,569 GBP|Avg: £1,248 GBP
Jared
Retailer 2
Retailer 3
July 2, 2026
Retailer 2£1,014 GBP
Retailer 3£1,014 GBP
Jared£1,569 GBP

5 data points across 3 retailers

3 retailers£1,014 GBP to £1,569 GBP

B
Cheapest Retailer
-
£1,014 GBP
$1,350 USD
B
Retailer 2
-
£1,014 GBP
$1,350 USD
View
Most Expensive
B
Jared
158584889 · Oct 30
£1,569 GBP
$2,090 USD
View
2 more retailers have this diamond
Prices start from £1,014 GBPSave up to £556 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
1.64ct Round
£1,014 GBP