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Oval|Lab Grown|IGI

1.78ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG836614343

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG836614343

Diamond specifications and retailer prices

From £288 GBP
$383 USD
As of October 26, 2026
Save £3,095 GBP (91%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £3,383 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.78ct lab-grown oval diamond

This 1.78ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836614343 or 836614343. Listed at 23 retailers as of October 26, 2026, with prices from £288 to £3,383, a £3,095 spread on the same certified stone. Rare Carat lists it at £3,383. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836614343
Dimensions9.79 × 6.80 × 4.18 mm
L/W Ratio1.44
Girdle conditionFaceted
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
9.79 mm6.80 mm1.78 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836614343
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.5%

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 26
Current: £3,383 GBP|Low: £219 GBP|High: £3,417 GBP|Avg: £969 GBP|-1.0%
Rare Carat
Retailer 2
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Retailer 22
October 29, 2026
Retailer 4£288 GBP
Retailer 20£322 GBP
Retailer 6£327 GBP
Retailer 10£357 GBP
Retailer 19£357 GBP
Retailer 13£369 GBP
Retailer 18£541 GBP
Retailer 21£548 GBP
Retailer 22£567 GBP
Retailer 16£612 GBP
Retailer 11£613 GBP
Retailer 17£643 GBP
Retailer 3£999 GBP
Retailer 5£1,047 GBP
Retailer 9£1,145 GBP
Retailer 7£1,174 GBP
Retailer 14£1,227 GBP
Retailer 8£1,237 GBP
Retailer 2£1,400 GBP
Retailer 12£1,668 GBP
Retailer 15£2,816 GBP
Rare Carat£3,383 GBP

22 data points across 22 retailers

23 retailers£288 GBP to £3,383 GBP

A
Cheapest Retailer
-
£288 GBP
$383 USD
A
Retailer 2
-
£322 GBP
$429 USD
View
A
Retailer 3
-
£327 GBP
$436 USD
View
Final sale: no returns
A
Retailer 4
-
£357 GBP
$475 USD
View
A
Retailer 5
-
£357 GBP
$475 USD
View
A
Retailer 6
-
£369 GBP
View
A
Retailer 7
-
£541 GBP
$720 USD
View
A
Retailer 8
-
£548 GBP
$730 USD
View
A
Retailer 9
-
£567 GBP
$755 USD
View
A
Retailer 10
-
£612 GBP
ZAR 13,174 ZAR
View
A
Retailer 11
-
£613 GBP
€778 EUR
View
Price last confirmed 11 days ago
A
Retailer 12
-
£643 GBP
View
B+
Retailer 13
-
£999 GBP
$1,331 USD
View
B+
Retailer 14
-
£1,047 GBP
$1,394 USD
View
B+
Retailer 15
-
£1,145 GBP
$1,525 USD
View
B+
Retailer 16
-
£1,174 GBP
$1,563 USD
View
B+
Retailer 17
-
£1,227 GBP
SGD 2,208 SGD
View
B+
Retailer 18
-
£1,237 GBP
$1,647 USD
View
B+
Retailer 19
-
£1,400 GBP
View
B+
Retailer 20
-
£1,668 GBP
$2,221 USD
View
B
Retailer 21
-
£2,455 GBP
$3,269 USD
View
B
Retailer 22
-
£2,816 GBP
$3,750 USD
View
Most Expensive
B
Rare Carat
PD-252061 · Oct 28
£3,383 GBP
$4,505 USD
View
22 more retailers have this diamond
Prices start from £288 GBPSave up to £3,095 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
1.78ct Oval
£288 GBP