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Radiant|Lab Grown|IGI

1.61ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG625406942

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

Certificate IGI LG625406942

Diamond specifications and retailer prices

From £206 GBP
$276 USD
As of October 30, 2026
Save £2,220 GBP (92%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £2,426 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.61ct lab-grown radiant diamond

This 1.61ct 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 LG625406942 or 625406942. Listed at 24 retailers as of October 30, 2026, with prices from £206 to £2,426, a £2,220 spread on the same certified stone. Brilliant Earth lists it at £2,426. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.61
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG625406942
Dimensions8.31 × 5.97 × 3.85 mm
L/W Ratio1.39
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
8.31 mm5.97 mm1.61 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG625406942
Side View
Table 62.0%Crown 41.2°Girdle: MED-STKPavilion 34.2°Culet: NoneDepth 64.5%

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: £2,426 GBP|Low: £206 GBP|High: £3,463 GBP|Avg: £883 GBP|-30.0%
Brilliant Earth
Retailer 2
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October 30, 2026
Retailer 7£206 GBP
Retailer 9£231 GBP
Retailer 4£240 GBP
Retailer 22£256 GBP
Retailer 23£256 GBP
Retailer 2£299 GBP
Retailer 11£422 GBP
Retailer 21£425 GBP
Retailer 8£451 GBP
Retailer 20£485 GBP
Retailer 13£502 GBP
Retailer 5£510 GBP
Retailer 3£658 GBP
Retailer 19£658 GBP
Retailer 12£786 GBP
Retailer 16£908 GBP
Retailer 15£983 GBP
Retailer 6£1,030 GBP
Retailer 14£1,059 GBP
Retailer 17£1,137 GBP
Retailer 10£1,829 GBP
Retailer 18£2,067 GBP
Brilliant Earth£2,426 GBP

30 data points across 23 retailers

24 retailers£206 GBP to £2,426 GBP

A
Cheapest Retailer
-
£206 GBP
$276 USD
A
Retailer 2
-
£231 GBP
$309 USD
View
Final sale: no returns
A
Retailer 3
-
£240 GBP
$321 USD
View
A
Retailer 4
-
£256 GBP
$343 USD
View
A
Retailer 5
-
£256 GBP
$343 USD
View
A
Retailer 6
-
£299 GBP
View
A
Retailer 7
-
£422 GBP
$566 USD
View
A
Retailer 8
-
£425 GBP
$570 USD
View
Retailer 9
-
£451 GBP
€576 EUR
View
Price last confirmed 8 days ago
A
Retailer 10
-
£485 GBP
ZAR 10,501 ZAR
View
A
Retailer 11
-
£502 GBP
View
A
Retailer 12
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£510 GBP
$683 USD
View
A
Retailer 13
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£658 GBP
$882 USD
View
A
Retailer 14
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£658 GBP
A$1,357 AUD
View
A
Retailer 15
-
£786 GBP
$1,053 USD
View
B+
Retailer 16
-
£908 GBP
$1,216 USD
View
B+
Retailer 17
-
£983 GBP
$1,317 USD
View
B+
Retailer 18
-
£1,030 GBP
$1,380 USD
View
B+
Retailer 19
-
£1,059 GBP
SGD 1,917 SGD
View
B+
Retailer 20
-
£1,137 GBP
View
B
Retailer 21
-
£1,829 GBP
$2,450 USD
View
Retailer 22
-
£2,067 GBP
$2,770 USD
View
Price last confirmed 13 days ago
B
Retailer 23
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£2,067 GBP
$2,770 USD
View
Most Expensive
B
Brilliant Earth
13714359Y · Oct 30
£2,426 GBP
$3,250 USD
View
23 more retailers have this diamond
Prices start from £206 GBPSave up to £2,220 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
1.61ct Radiant
£206 GBP