CaratHunter
Plans
Radiant|Lab Grown|IGI

1.17ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG735547542

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

Certificate IGI LG735547542

Diamond specifications and retailer prices

From £134 GBP
$179 USD
As of October 30, 2026
Save £1,150 GBP (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,328 GBP at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 1.17ct lab-grown radiant diamond

This 1.17ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG735547542 or 735547542. Listed at 22 retailers as of October 30, 2026, with a 861% 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

1.17
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.4°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735547542
Dimensions10.37 × 7.13 × 4.39 mm
L/W Ratio1.45
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
10.37 mm7.13 mm1.17 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735547542
Side View
Table 67.0%Crown 27.4°Girdle: MED-STKPavilion 35°Culet: NoneDepth 64.3%

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 30
Current: £1,284 GBP|Low: £128 GBP|High: £1,328 GBP|Avg: £444 GBP|-3.4%
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
Retailer 19
Retailer 20
October 31, 2026
Retailer 4£134 GBP
Retailer 17£149 GBP
Retailer 10£154 GBP
Retailer 5£166 GBP
Retailer 12£166 GBP
Retailer 2£281 GBP
Retailer 14£284 GBP
Retailer 7£293 GBP
Retailer 13£295 GBP
Retailer 9£349 GBP
Retailer 16£403 GBP
Retailer 19£413 GBP
Retailer 6£531 GBP
Retailer 8£534 GBP
Retailer 11£572 GBP
Retailer 3£590 GBP
Retailer 20£612 GBP
Retailer 15£774 GBP
Retailer 18£970 GBP
Brilliant Earth£1,284 GBP

40 data points across 20 retailers

22 retailers£134 GBP to £1,284 GBP

A
Cheapest Retailer
-
£134 GBP
$179 USD
A
Retailer 2
-
£149 GBP
$199 USD
View
Final sale: no returns
A
Retailer 3
-
£154 GBP
$207 USD
View
A
Retailer 4
-
£166 GBP
$222 USD
View
A
Retailer 5
-
£166 GBP
$222 USD
View
A
Retailer 6
-
£281 GBP
€358 EUR
View
A
Retailer 7
-
£284 GBP
ZAR 6,145 ZAR
View
A
Retailer 8
-
£293 GBP
$393 USD
View
A
Retailer 9
-
£295 GBP
View
A
Retailer 10
-
£349 GBP
$468 USD
View
A
Retailer 11
-
£403 GBP
A$831 AUD
View
A
Retailer 12
-
£413 GBP
$554 USD
View
B+
Retailer 13
-
£531 GBP
$712 USD
View
B+
Retailer 14
-
£534 GBP
$716 USD
View
B+
Retailer 15
-
£572 GBP
$766 USD
View
B+
Retailer 16
-
£590 GBP
SGD 1,068 SGD
View
B+
Retailer 17
-
£612 GBP
$820 USD
View
B+
Retailer 18
-
£774 GBP
View
Retailer 19
-
£970 GBP
$1,300 USD
View
Price last confirmed 13 days ago
Retailer 20
-
£985 GBP
$1,320 USD
View
Price last confirmed 37 days ago
B
Retailer 21
-
£1,284 GBP
$1,720 USD
View
Most Expensive
Brilliant Earth
16533170A · Sep 28
£1,328 GBP
$1,780 USD
View
Price last confirmed 33 days ago
21 more retailers have this diamond
Prices start from £134 GBPSave up to £1,150 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
1.17ct Radiant
£134 GBP