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Round|Lab Grown|IGI

0.68ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG788640312

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788640312

Diamond specifications and retailer prices

From £139 GBP
$186 USD
As of October 29, 2026
Save £720 GBP (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £858 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.68ct lab-grown round diamond

This 0.68ct lab-grown round 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 LG788640312 or 788640312. Listed at 21 retailers as of October 29, 2026, with prices from £139 to £858, a £720 spread on the same certified stone. Reve Diamonds lists it at £858. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788640312
Dimensions5.66 × 5.70 × 3.43 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
5.66 mm5.70 mm0.68 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788640312
Side View
Table 59.0%Crown 33.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.3%

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 29
Current: £312 GBP|Low: £134 GBP|High: £816 GBP|Avg: £324 GBP|+6.5%
Retailer 1
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Retailer 9
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Retailer 11
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Retailer 16
October 30, 2026
Retailer 15£139 GBP
Retailer 6£156 GBP
Retailer 5£161 GBP
Retailer 2£172 GBP
Retailer 8£172 GBP
Retailer 13£202 GBP
Retailer 9£295 GBP
Retailer 3£303 GBP
Retailer 11£312 GBP
Retailer 1£312 GBP
Retailer 4£341 GBP
Retailer 16£403 GBP
Retailer 12£440 GBP
Retailer 7£555 GBP
Retailer 14£557 GBP
Retailer 10£811 GBP

44 data points across 16 retailers

21 retailers£139 GBP to £858 GBP

A
Cheapest Retailer
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£139 GBP
$186 USD
A
Retailer 2
-
£156 GBP
$209 USD
View
Final sale: no returns
A
Retailer 3
-
£161 GBP
$216 USD
View
A
Retailer 4
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£172 GBP
$231 USD
View
A
Retailer 5
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£172 GBP
$231 USD
View
A
Retailer 6
-
£191 GBP
HK$2,000 HKD
View
A
Retailer 7
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£202 GBP
$270 USD
View
A
Retailer 8
-
£220 GBP
$295 USD
View
A
Retailer 9
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£295 GBP
€377 EUR
View
B+
Retailer 10
-
£303 GBP
$406 USD
View
A
Retailer 11
-
£312 GBP
ZAR 6,750 ZAR
View
B+
Retailer 12
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£312 GBP
View
B+
Retailer 13
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£341 GBP
$457 USD
View
B+
Retailer 14
-
£403 GBP
$540 USD
View
B+
Retailer 15
-
£440 GBP
A$906 AUD
View
B+
Retailer 16
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£470 GBP
SGD 851 SGD
View
B
Retailer 17
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£555 GBP
$743 USD
View
B
Retailer 18
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£557 GBP
$746 USD
View
B
Retailer 19
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£595 GBP
$797 USD
View
B
Retailer 20
-
£811 GBP
View
Most Expensive
B
Reve Diamonds
E62EE92FE · Oct 30
£858 GBP
$1,150 USD
View
20 more retailers have this diamond
Prices start from £139 GBPSave up to £720 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 Round
£139 GBP