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Round|Lab Grown|IGI

1.86ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG763620405

Shape and cutting style on the report: Round brilliant

Certificate IGI LG763620405

Diamond specifications and retailer prices

From £297 GBP
$396 USD
As of October 28, 2026
Save £2,241 GBP (88%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £2,538 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.86ct lab-grown round diamond

This 1.86ct lab-grown round 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 LG763620405 or 763620405. Listed at 25 retailers as of October 28, 2026, with prices from £297 to £2,538, a £2,241 spread on the same certified stone. Brilliant Earth lists it at £2,538. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.86
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763620405
Dimensions7.92 × 7.88 × 4.87 mm
L/W Ratio1.01
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
7.92 mm7.88 mm1.86 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG763620405
Side View
Table 56.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.6%

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 28
Current: £2,538 GBP|Low: £297 GBP|High: £2,538 GBP|Avg: £909 GBP
Brilliant Earth
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
October 30, 2026
Retailer 7£297 GBP
Retailer 4£466 GBP
Retailer 13£466 GBP
Retailer 9£533 GBP
Retailer 12£568 GBP
Retailer 2£593 GBP
Retailer 5£753 GBP
Retailer 10£766 GBP
Retailer 3£962 GBP
Retailer 16£969 GBP
Retailer 6£1,093 GBP
Retailer 11£1,147 GBP
Retailer 8£1,267 GBP
Retailer 14£1,292 GBP
Retailer 15£1,945 GBP
Brilliant Earth£2,538 GBP

38 data points across 16 retailers

25 retailers£297 GBP to £2,538 GBP

Retailer 1
-
£267 GBP
$355 USD
Price last confirmed 19 days ago
Retailer 2
-
£274 GBP
$365 USD
View
Price last confirmed 38 days ago
A
Retailer 3
-
£297 GBP
$396 USD
View
Final sale: no returns
Retailer 4
-
£318 GBP
$423 USD
View
Price last confirmed 38 days ago
Retailer 5
-
£330 GBP
$440 USD
View
Price last confirmed 27 days ago
Retailer 6
-
£330 GBP
$440 USD
View
Price last confirmed 18 days ago
Retailer 7
-
£335 GBP
$446 USD
View
Price last confirmed 35 days ago
A
Retailer 8
-
£466 GBP
$620 USD
View
A
Retailer 9
-
£466 GBP
$620 USD
View
A
Retailer 10
-
£533 GBP
€676 EUR
View
A
Retailer 11
-
£568 GBP
ZAR 12,209 ZAR
View
A
Retailer 12
-
£593 GBP
View
A
Retailer 13
-
£753 GBP
$1,002 USD
View
A
Retailer 14
-
£766 GBP
A$1,570 AUD
View
B+
Retailer 15
-
£962 GBP
$1,281 USD
View
B+
Retailer 16
-
£969 GBP
$1,290 USD
View
Retailer 17
-
£1,062 GBP
$1,414 USD
View
Price last confirmed 22 days ago
Retailer 18
-
£1,092 GBP
$1,454 USD
View
Price last confirmed 39 days ago
B+
Retailer 19
-
£1,093 GBP
$1,455 USD
View
B+
Retailer 20
-
£1,147 GBP
$1,527 USD
View
B+
Retailer 21
-
£1,267 GBP
$1,687 USD
View
B+
Retailer 22
-
£1,292 GBP
View
B
Retailer 23
-
£1,941 GBP
$2,585 USD
View
B
Retailer 24
-
£1,945 GBP
$2,590 USD
View
Most Expensive
B
Brilliant Earth
20893360A · Oct 29
£2,538 GBP
$3,380 USD
View
24 more retailers have this diamond
Prices start from £297 GBPSave up to £2,241 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
1.86ct Round
£297 GBP