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Round|Lab Grown|IGI

3.64ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG662444746

Shape and cutting style on the report: Round brilliant

Certificate IGI LG662444746

Diamond specifications and retailer prices

From £305 GBP
$409 USD
As of October 26, 2026
Save £2,404 GBP (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,709 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.64ct lab-grown round diamond

This 3.64ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG662444746 or 662444746. Listed at 11 retailers as of October 26, 2026, with prices from £305 to £2,709, a £2,404 spread on the same certified stone. Do Amore Diamonds lists it at £2,709. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.64
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662444746
Dimensions9.79 × 9.75 × 6.08 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.79 mm9.75 mm3.64 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662444746
Side View
Table 59.0%Crown 35.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

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: £2,709 GBP|Low: £250 GBP|High: £2,776 GBP|Avg: £1,049 GBP|-2.4%
Do Amore Diamonds
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
October 29, 2026
Retailer 13£305 GBP
Retailer 8£342 GBP
Retailer 3£350 GBP
Retailer 11£599 GBP
Retailer 7£601 GBP
Retailer 5£716 GBP
Retailer 6£772 GBP
Retailer 4£788 GBP
Retailer 12£967 GBP
Retailer 9£1,061 GBP
Retailer 10£1,342 GBP
Retailer 2£1,542 GBP
Retailer 14£1,873 GBP
Do Amore Diamonds£2,709 GBP

24 data points across 14 retailers

11 retailers£305 GBP to £2,709 GBP

A
Cheapest Retailer
-
£305 GBP
$409 USD
A
Retailer 2
-
£342 GBP
$458 USD
View
A
Retailer 3
-
£350 GBP
$469 USD
View
Final sale: no returns
B+
Retailer 4
-
£599 GBP
$802 USD
View
B+
Retailer 5
-
£601 GBP
$805 USD
View
B+
Retailer 6
-
£967 GBP
$1,296 USD
View
Retailer 7
-
£1,061 GBP
$1,421 USD
View
Price last confirmed 7 days ago
B
Retailer 8
-
£1,342 GBP
$1,798 USD
View
B
Retailer 9
-
£1,542 GBP
View
B
Retailer 10
-
£1,873 GBP
$2,510 USD
View
Most Expensive
B
Do Amore Diamonds
27-3833F0A99 · Oct 29
£2,709 GBP
$3,630 USD
View
10 more retailers have this diamond
Prices start from £305 GBPSave up to £2,404 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
3.64ct Round
£305 GBP