CaratHunter
Plans
Radiant|Lab Grown|IGI

1.74ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG818654254

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

Certificate IGI LG818654254

Diamond specifications and retailer prices

From £222 GBP
$295 USD
As of October 27, 2026
Save £2,414 GBP (92%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,636 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.74ct lab-grown radiant diamond

This 1.74ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818654254 or 818654254. Listed at 21 retailers as of October 27, 2026, with prices from £222 to £2,636, a £2,414 spread on the same certified stone. Brilliant Earth lists it at £2,636. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.74
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.3°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654254
Dimensions8.22 × 5.92 × 4.07 mm
L/W Ratio1.39
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
8.22 mm5.92 mm1.74 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654254
Side View
Table 64.0%Crown 29.3°Girdle: MediumPavilion 36.7°Culet: NoneDepth 68.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £2,636 GBP|Low: £255 GBP|High: £2,726 GBP|Avg: £885 GBP|-3.3%
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
Retailer 18
October 29, 2026
Retailer 5£255 GBP
Retailer 15£283 GBP
Retailer 14£390 GBP
Retailer 8£450 GBP
Retailer 13£472 GBP
Retailer 4£477 GBP
Retailer 2£485 GBP
Retailer 16£497 GBP
Retailer 12£639 GBP
Retailer 18£699 GBP
Retailer 7£919 GBP
Retailer 3£960 GBP
Retailer 6£982 GBP
Retailer 9£982 GBP
Retailer 11£1,106 GBP
Retailer 10£1,302 GBP
Retailer 17£2,020 GBP
Brilliant Earth£2,636 GBP

29 data points across 18 retailers

21 retailers£222 GBP to £2,636 GBP

A
Cheapest Retailer
-
£222 GBP
$295 USD
A
Retailer 2
-
£255 GBP
$340 USD
View
Final sale: no returns
A
Retailer 3
-
£275 GBP
$366 USD
View
A
Retailer 4
-
£275 GBP
$366 USD
View
A
Retailer 5
-
£283 GBP
View
A
Retailer 6
-
£390 GBP
$520 USD
View
A
Retailer 7
-
£450 GBP
$599 USD
View
A
Retailer 8
-
£472 GBP
ZAR 10,154 ZAR
View
A
Retailer 9
-
£477 GBP
$635 USD
View
A
Retailer 10
-
£485 GBP
View
A
Retailer 11
-
£497 GBP
€630 EUR
View
A
Retailer 12
-
£639 GBP
A$1,309 AUD
View
A
Retailer 13
-
£699 GBP
$931 USD
View
A
Retailer 14
-
£919 GBP
$1,224 USD
View
B+
Retailer 15
-
£960 GBP
$1,279 USD
View
B+
Retailer 16
-
£982 GBP
$1,308 USD
View
B+
Retailer 17
-
£982 GBP
SGD 1,768 SGD
View
B+
Retailer 18
-
£1,106 GBP
View
B+
Retailer 19
-
£1,302 GBP
$1,734 USD
View
Retailer 20
-
£2,020 GBP
$2,690 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21433885A · Oct 29
£2,636 GBP
$3,510 USD
View
20 more retailers have this diamond
Prices start from £222 GBPSave up to £2,414 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
1.74ct Radiant
£222 GBP