CaratHunter
Plans
Round|Lab Grown|IGI

1.61ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG660459191

Certificate IGI LG660459191

Diamond specifications and retailer prices

From £969 GBP
$1,300 USD
As of November 2, 2026
Save £559 GBP (37%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,528 GBP at Jared · As of November 2, 2026
View at Jared

About this 1.61ct lab-grown round diamond

This 1.61ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG660459191 or 660459191. Listed at 3 retailers as of November 2, 2026, with prices from £969 to £1,528, a £559 spread on the same certified stone. Jared lists it at £1,528. 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

1.61
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG660459191
Dimensions7.49 × 7.52 mm
L/W Ratio1.00
Top View
7.49 mm7.52 mm1.61 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660459191
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.3%

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: Nov 2
Current: £1,528 GBP|Low: £961 GBP|High: £1,528 GBP|Avg: £1,182 GBP
Jared
Retailer 2
Retailer 3
April 27, 2026
Retailer 2£969 GBP
Retailer 3£969 GBP
Jared£1,528 GBP

7 data points across 3 retailers

3 retailers£969 GBP to £1,528 GBP

B
Cheapest Retailer
-
£969 GBP
$1,300 USD
B
Retailer 2
-
£969 GBP
$1,300 USD
View
Most Expensive
B
Jared
154541414 · Nov 2
£1,528 GBP
$2,050 USD
View
2 more retailers have this diamond
Prices start from £969 GBPSave up to £559 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
1.61ct Round
£969 GBP