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Radiant|Lab Grown|IGI

1.60ct G IF Radiant Lab Grown Diamond

ID • G/IF • IGI LG517225667

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

Certificate IGI LG517225667

Diamond specifications and retailer prices

From £223 GBP
$299 USD
As of October 30, 2026
Save £1,568 GBP (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,791 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 G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG517225667 or 517225667. Listed at 23 retailers as of October 30, 2026, with prices from £223 to £1,791, a £1,568 spread on the same certified stone. Brilliant Earth lists it at £1,791. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.60
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG517225667
Dimensions8.38 × 5.89 × 3.95 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.38 mm5.89 mm1.60 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG517225667
Side View
Table 62.0%Crown 42.1°Girdle: MediumPavilion 36°Culet: NoneDepth 67.1%

Caratlytics Score

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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 30
Current: £1,791 GBP|Low: £223 GBP|High: £2,015 GBP|Avg: £700 GBP|-11.1%
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
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Retailer 17
October 31, 2026
Retailer 3£223 GBP
Retailer 15£343 GBP
Retailer 7£353 GBP
Retailer 16£366 GBP
Retailer 2£426 GBP
Retailer 6£434 GBP
Retailer 13£444 GBP
Retailer 10£456 GBP
Retailer 17£588 GBP
Retailer 12£601 GBP
Retailer 14£719 GBP
Retailer 4£921 GBP
Retailer 8£956 GBP
Retailer 9£1,024 GBP
Retailer 11£1,042 GBP
Retailer 5£1,679 GBP
Brilliant Earth£1,791 GBP

43 data points across 17 retailers

23 retailers£223 GBP to £1,791 GBP

Retailer 1
-
£189 GBP
$253 USD
Price last confirmed 23 days ago
Retailer 2
-
£204 GBP
$274 USD
View
Price last confirmed 31 days ago
A
Retailer 3
-
£223 GBP
$299 USD
View
Final sale: no returns
Retailer 4
-
£234 GBP
$314 USD
View
Price last confirmed 28 days ago
Retailer 5
-
£237 GBP
$318 USD
View
Price last confirmed 34 days ago
Retailer 6
-
£250 GBP
$335 USD
View
Price last confirmed 32 days ago
A
Retailer 7
-
£343 GBP
$460 USD
View
A
Retailer 8
-
£353 GBP
HK$3,700 HKD
View
A
Retailer 9
-
£366 GBP
$490 USD
View
A
Retailer 10
-
£426 GBP
€544 EUR
View
A
Retailer 11
-
£434 GBP
$581 USD
View
A
Retailer 12
-
£444 GBP
ZAR 9,615 ZAR
View
A
Retailer 13
-
£456 GBP
View
A
Retailer 14
-
£588 GBP
$788 USD
View
A
Retailer 15
-
£601 GBP
A$1,239 AUD
View
B+
Retailer 16
-
£719 GBP
$964 USD
View
Retailer 17
-
£899 GBP
$1,205 USD
View
Price last confirmed 31 days ago
B+
Retailer 18
-
£921 GBP
$1,234 USD
View
B+
Retailer 19
-
£956 GBP
$1,280 USD
View
B+
Retailer 20
-
£1,024 GBP
SGD 1,854 SGD
View
B+
Retailer 21
-
£1,042 GBP
View
B
Retailer 22
-
£1,679 GBP
$2,250 USD
View
Most Expensive
B
Brilliant Earth
6409602Y · Oct 30
£1,791 GBP
$2,400 USD
View
22 more retailers have this diamond
Prices start from £223 GBPSave up to £1,568 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
£223 GBP