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Oval|Lab Grown|IGI

1.68ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG729573310

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG729573310

Diamond specifications and retailer prices

From £256 GBP
$343 USD
As of October 30, 2026
Save £2,334 GBP (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,590 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.68ct lab-grown oval diamond

This 1.68ct lab-grown oval 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 LG729573310 or 729573310. Listed at 10 retailers as of October 30, 2026, with prices from £256 to £2,590, a £2,334 spread on the same certified stone. Brilliant Earth lists it at £2,590. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.68
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729573310
Dimensions9.56 × 6.81 × 4.20 mm
L/W Ratio1.40
Girdle conditionFaceted
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
9.56 mm6.81 mm1.68 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729573310
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.7%

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: £2,590 GBP|Low: £256 GBP|High: £2,687 GBP|Avg: £1,175 GBP|-3.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 7£256 GBP
Retailer 4£429 GBP
Retailer 2£455 GBP
Retailer 3£505 GBP
Retailer 8£911 GBP
Retailer 9£975 GBP
Retailer 5£1,145 GBP
Retailer 6£1,929 GBP
Brilliant Earth£2,590 GBP

42 data points across 9 retailers

10 retailers£256 GBP to £2,590 GBP

A
Cheapest Retailer
-
£256 GBP
$343 USD
Final sale: no returns
A
Retailer 2
-
£429 GBP
$575 USD
View
A
Retailer 3
-
£455 GBP
€581 EUR
View
A
Retailer 4
-
£505 GBP
View
B+
Retailer 5
-
£911 GBP
SGD 1,650 SGD
View
B+
Retailer 6
-
£956 GBP
$1,281 USD
View
B+
Retailer 7
-
£975 GBP
$1,307 USD
View
B+
Retailer 8
-
£1,145 GBP
View
B
Retailer 9
-
£1,929 GBP
$2,585 USD
View
Most Expensive
B
Brilliant Earth
15925909A · Oct 31
£2,590 GBP
$3,470 USD
View
9 more retailers have this diamond
Prices start from £256 GBPSave up to £2,334 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
1.68ct Oval
£256 GBP