CaratHunter
Plans
Oval|Lab Grown|IGI

1.66ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG782601600

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG782601600

Diamond specifications and retailer prices

From £255 GBP
$342 USD
As of October 29, 2026
Save £2,711 GBP (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £2,967 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.66ct lab-grown oval diamond

This 1.66ct 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 LG782601600 or 782601600. Listed at 24 retailers as of October 28, 2026, with prices from £255 to £2,967, a £2,711 spread on the same certified stone. Rare Carat lists it at £2,967. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782601600
Dimensions9.42 × 6.67 × 4.19 mm
L/W Ratio1.41
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
9.42 mm6.67 mm1.66 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782601600
Side View
Table 60.0%Crown 34.5°Girdle: MED-THKPavilion 41.1°Culet: NoneDepth 62.8%

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: £2,967 GBP|Low: £249 GBP|High: £2,997 GBP|Avg: £848 GBP|-1.0%
Rare Carat
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
Retailer 21
Retailer 22
October 31, 2026
Retailer 8£255 GBP
Retailer 2£285 GBP
Retailer 3£296 GBP
Retailer 15£316 GBP
Retailer 20£316 GBP
Retailer 18£429 GBP
Retailer 6£510 GBP
Retailer 5£512 GBP
Retailer 17£544 GBP
Retailer 19£561 GBP
Retailer 13£569 GBP
Retailer 9£908 GBP
Retailer 7£928 GBP
Retailer 14£1,018 GBP
Retailer 11£1,050 GBP
Retailer 22£1,105 GBP
Retailer 12£1,116 GBP
Retailer 10£1,228 GBP
Retailer 21£1,271 GBP
Retailer 4£1,503 GBP
Retailer 16£2,530 GBP
Rare Carat£2,967 GBP

21 data points across 22 retailers

24 retailers£255 GBP to £2,967 GBP

A
Cheapest Retailer
-
£255 GBP
$342 USD
A
Retailer 2
-
£285 GBP
$382 USD
View
Final sale: no returns
A
Retailer 3
-
£296 GBP
$397 USD
View
A
Retailer 4
-
£316 GBP
$424 USD
View
A
Retailer 5
-
£316 GBP
$424 USD
View
A
Retailer 6
-
£429 GBP
$575 USD
View
A
Retailer 7
-
£510 GBP
$684 USD
View
A
Retailer 8
-
£512 GBP
$686 USD
View
A
Retailer 9
-
£544 GBP
ZAR 11,780 ZAR
View
A
Retailer 10
-
£561 GBP
€716 EUR
View
A
Retailer 11
-
£569 GBP
View
Retailer 12
-
£802 GBP
$1,075 USD
View
Price last confirmed 21 days ago
B+
Retailer 13
-
£908 GBP
$1,217 USD
View
B+
Retailer 14
-
£928 GBP
$1,244 USD
View
B+
Retailer 15
-
£1,018 GBP
$1,364 USD
View
B+
Retailer 16
-
£1,050 GBP
$1,407 USD
View
B+
Retailer 17
-
£1,105 GBP
$1,480 USD
View
B+
Retailer 18
-
£1,116 GBP
SGD 2,020 SGD
View
B+
Retailer 19
-
£1,224 GBP
$1,640 USD
View
B
Retailer 20
-
£1,228 GBP
View
B+
Retailer 21
-
£1,271 GBP
View
B+
Retailer 22
-
£1,503 GBP
$2,014 USD
View
B
Retailer 23
-
£2,530 GBP
$3,390 USD
View
Most Expensive
B
Rare Carat
MR-168077 · Oct 28
£2,967 GBP
$3,975 USD
View
23 more retailers have this diamond
Prices start from £255 GBPSave up to £2,711 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
1.66ct Oval
£255 GBP