Radiant|Lab Grown|IGI

0.68ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG643411996

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

Certificate IGI LG643411996

Diamond specifications and retailer prices

From £248 GBP
$332 USD
As of October 30, 2026
Save £1,163 GBP (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,411 GBP at Kay Jewelers · As of October 30, 2026
View at Kay Jewelers

About this 0.68ct lab-grown radiant diamond

This 0.68ct lab-grown radiant sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG643411996 or 643411996. Listed at 20 retailers as of October 30, 2026, with prices from £248 to £1,411, a £1,163 spread on the same certified stone. Kay Jewelers lists it at £1,411. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.68
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle30.8°
Pavilion angle30.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG643411996
Dimensions6.07 × 4.24 × 2.88 mm
L/W Ratio1.43
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
6.07 mm4.24 mm0.68 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG643411996
Side View
Table 62.0%Crown 30.8°Girdle: MediumPavilion 30.4°Culet: NoneDepth 67.9%

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: £1,411 GBP|Low: £201 GBP|High: £1,411 GBP|Avg: £766 GBP|+8.6%
Kay Jewelers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 11£248 GBP
Retailer 17£249 GBP
Retailer 7£269 GBP
Retailer 18£278 GBP
Retailer 16£289 GBP
Retailer 2£309 GBP
Retailer 5£397 GBP
Retailer 3£531 GBP
Retailer 10£560 GBP
Retailer 6£575 GBP
Retailer 14£617 GBP
Retailer 8£1,017 GBP
Retailer 12£1,096 GBP
Retailer 15£1,205 GBP
Retailer 19£1,212 GBP
Retailer 9£1,331 GBP
Retailer 4£1,337 GBP
Kay Jewelers£1,411 GBP
Retailer 13£1,411 GBP

38 data points across 19 retailers

20 retailers£248 GBP to £1,411 GBP

A
Cheapest Retailer
-
£248 GBP
$332 USD
A
Retailer 2
-
£249 GBP
$334 USD
View
A
Retailer 3
-
£256 GBP
$343 USD
View
Retailer 4
-
£269 GBP
$360 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
£278 GBP
$372 USD
View
Final sale: no returns
A
Retailer 6
-
£289 GBP
$387 USD
View
A
Retailer 7
-
£309 GBP
$414 USD
View
Retailer 8
-
£397 GBP
€507 EUR
View
Price last confirmed 7 days ago
B+
Retailer 9
-
£531 GBP
$712 USD
View
B
Retailer 10
-
£560 GBP
$750 USD
View
B
Retailer 11
-
£575 GBP
CA$1,070 CAD
View
B+
Retailer 12
-
£617 GBP
ZAR 13,346 ZAR
View
B
Retailer 13
-
£1,096 GBP
$1,468 USD
View
B
Retailer 14
-
£1,205 GBP
$1,614 USD
View
B
Retailer 15
-
£1,212 GBP
$1,625 USD
View
Retailer 16
-
£1,331 GBP
View
Price last confirmed 11 days ago
B
Retailer 17
-
£1,337 GBP
View
B
Retailer 18
-
£1,403 GBP
$1,880 USD
View
B
Retailer 19
-
£1,411 GBP
$1,890 USD
View
Most Expensive
B
Kay Jewelers
251799860 · Oct 30
£1,411 GBP
$1,890 USD
View
19 more retailers have this diamond
Prices start from £248 GBPSave up to £1,163 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
0.68ct Radiant
£248 GBP