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Radiant|Lab Grown|IGI

1.60ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG722556116

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG722556116

Diamond specifications and retailer prices

From £472 GBP
$632 USD
As of October 27, 2026
Save £2,633 GBP (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,105 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.6ct lab-grown radiant diamond

This 1.6ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG722556116 or 722556116. Listed at 18 retailers as of October 27, 2026, with prices from £472 to £3,105, a £2,633 spread on the same certified stone. Brilliant Earth lists it at £3,105. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.60
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG722556116
Dimensions5.99 × 5.99 × 3.96 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.99 mm5.99 mm1.60 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG722556116
Side View
Table 66.0%Crown 44.3°Girdle: MED-STKPavilion 35.5°Culet: NoneDepth 66.1%

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: Oct 27
Current: £3,105 GBP|Low: £452 GBP|High: £3,373 GBP|Avg: £1,217 GBP|-8.0%
Brilliant Earth
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
Retailer 17
October 30, 2026
Retailer 16£472 GBP
Retailer 6£513 GBP
Retailer 8£528 GBP
Retailer 17£547 GBP
Retailer 12£679 GBP
Retailer 7£788 GBP
Retailer 11£871 GBP
Retailer 5£893 GBP
Retailer 14£926 GBP
Retailer 10£1,005 GBP
Retailer 15£1,270 GBP
Retailer 13£1,361 GBP
Retailer 4£1,537 GBP
Retailer 9£1,706 GBP
Retailer 3£1,866 GBP
Retailer 2£2,317 GBP
Brilliant Earth£3,105 GBP

42 data points across 17 retailers

18 retailers£472 GBP to £3,105 GBP

A
Cheapest Retailer
-
£472 GBP
$632 USD
A
Retailer 2
-
£513 GBP
$687 USD
View
A
Retailer 3
-
£528 GBP
$707 USD
View
Final sale: no returns
Retailer 4
-
£547 GBP
$733 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
£547 GBP
$733 USD
View
A
Retailer 6
-
£679 GBP
$910 USD
View
A
Retailer 7
-
£788 GBP
$1,056 USD
View
A
Retailer 8
-
£871 GBP
View
B+
Retailer 9
-
£893 GBP
$1,197 USD
View
Retailer 10
-
£926 GBP
€1,182 EUR
View
Price last confirmed 8 days ago
B+
Retailer 11
-
£1,005 GBP
ZAR 21,751 ZAR
View
B+
Retailer 12
-
£1,270 GBP
$1,702 USD
View
Retailer 13
-
£1,361 GBP
A$2,805 AUD
View
Price last confirmed 10 days ago
B
Retailer 14
-
£1,537 GBP
$2,060 USD
View
B
Retailer 15
-
£1,706 GBP
View
B
Retailer 16
-
£1,866 GBP
$2,500 USD
View
B
Retailer 17
-
£2,317 GBP
View
Most Expensive
B
Brilliant Earth
20725259A · Oct 30
£3,105 GBP
$4,160 USD
View
17 more retailers have this diamond
Prices start from £472 GBPSave up to £2,633 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 Radiant
£472 GBP