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Round|Lab Grown|IGI

1.60ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG840651817

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840651817

Diamond specifications and retailer prices

From £255 GBP
$342 USD
As of November 1, 2026
Save £1,117 GBP (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,638 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.6ct lab-grown round diamond

This 1.6ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840651817 or 840651817. Listed at 22 retailers as of October 31, 2026, with a 437% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.60
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840651817
Dimensions7.51 × 7.55 × 4.61 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.51 mm7.55 mm1.60 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840651817
Side View
Table 58.0%Crown 33.6°Girdle: MediumPavilion 41.1°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
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: Nov 1
Current: £1,638 GBP|Low: £255 GBP|High: £1,657 GBP|Avg: £681 GBP|-1.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 4£255 GBP
Retailer 8£296 GBP
Retailer 7£316 GBP
Retailer 6£353 GBP
Retailer 3£425 GBP
Retailer 11£429 GBP
Retailer 2£449 GBP
Retailer 10£499 GBP
Retailer 15£544 GBP
Retailer 9£567 GBP
Retailer 14£734 GBP
Retailer 12£739 GBP
Retailer 5£1,017 GBP
Retailer 16£1,137 GBP
Retailer 13£1,275 GBP
Rare Carat£1,638 GBP

31 data points across 16 retailers

22 retailers£255 GBP to £1,372 GBP

A
Cheapest Retailer
-
£255 GBP
$342 USD
A
Retailer 2
-
£296 GBP
$397 USD
View
Retailer 3
-
£316 GBP
$424 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£316 GBP
$424 USD
View
A
Retailer 5
-
£353 GBP
HK$3,700 HKD
View
A
Retailer 6
-
£425 GBP
$570 USD
View
A
Retailer 7
-
£429 GBP
$575 USD
View
A
Retailer 8
-
£449 GBP
View
A
Retailer 9
-
£499 GBP
€637 EUR
View
A
Retailer 10
-
£510 GBP
$683 USD
View
A
Retailer 11
-
£544 GBP
ZAR 11,772 ZAR
View
A
Retailer 12
-
£567 GBP
View
B+
Retailer 13
-
£716 GBP
$959 USD
View
B+
Retailer 14
-
£734 GBP
A$1,514 AUD
View
B+
Retailer 15
-
£739 GBP
$990 USD
View
B+
Retailer 16
-
£1,017 GBP
$1,363 USD
View
B+
Retailer 17
-
£1,028 GBP
SGD 1,862 SGD
View
B
Retailer 18
-
£1,049 GBP
$1,406 USD
View
B+
Retailer 19
-
£1,137 GBP
$1,523 USD
View
B
Retailer 20
-
£1,275 GBP
View
B
Retailer 21
-
£1,372 GBP
$1,838 USD
View
Most Expensive
Rare Carat
AJ-00058577 · Oct 21
£1,638 GBP
$2,195 USD
View
Price last confirmed 11 days ago
21 more retailers have this diamond
Prices start from £255 GBPSave up to £1,117 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
1.60ct Round
£255 GBP