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Marquise|Lab Grown|IGI

3.60ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG805690269

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG805690269

Diamond specifications and retailer prices

From £376 GBP
$504 USD
As of October 31, 2026
Save £2,609 GBP (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,985 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.6ct lab-grown marquise diamond

This 3.6ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG805690269 or 805690269. Listed at 16 retailers as of October 31, 2026, with prices from £376 to £2,985, a £2,609 spread on the same certified stone. Do Amore Diamonds lists it at £2,985. 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

3.60
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805690269
Dimensions16.79 × 7.90 × 4.74 mm
L/W Ratio2.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.79 mm7.90 mm3.60 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805690269
Side View
Table 61.0%Crown 33.2°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 60.0%

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 31
Current: £2,985 GBP|Low: £268 GBP|High: £2,985 GBP|Avg: £1,038 GBP
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 30, 2026
Retailer 10£336 GBP
Retailer 4£376 GBP
Retailer 13£416 GBP
Retailer 6£506 GBP
Retailer 9£631 GBP
Retailer 11£653 GBP
Retailer 14£712 GBP
Retailer 2£765 GBP
Retailer 3£820 GBP
Retailer 8£1,120 GBP
Retailer 12£1,479 GBP
Retailer 5£1,586 GBP
Retailer 7£1,931 GBP
Do Amore Diamonds£2,985 GBP

33 data points across 14 retailers

16 retailers£376 GBP to £2,985 GBP

Retailer 1
-
£336 GBP
$450 USD
Price last confirmed 10 days ago
A
Retailer 2
-
£376 GBP
$504 USD
View
Final sale: no returns
Retailer 3
-
£376 GBP
$504 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£416 GBP
$558 USD
View
Price last confirmed 15 days ago
Retailer 5
-
£416 GBP
$558 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
£631 GBP
$845 USD
View
B+
Retailer 7
-
£653 GBP
$875 USD
View
A
Retailer 8
-
£712 GBP
$954 USD
View
A
Retailer 9
-
£765 GBP
View
A
Retailer 10
-
£820 GBP
$1,099 USD
View
B+
Retailer 11
-
£1,120 GBP
$1,501 USD
View
Retailer 12
-
£1,210 GBP
$1,621 USD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
£1,479 GBP
$1,981 USD
View
B
Retailer 14
-
£1,586 GBP
$2,125 USD
View
Retailer 15
-
£1,931 GBP
View
Price last confirmed 13 days ago
Most Expensive
B
Do Amore Diamonds
27-6DE664277 · Oct 31
£2,985 GBP
$4,000 USD
View
15 more retailers have this diamond
Prices start from £376 GBPSave up to £2,609 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
3.60ct Marquise
£376 GBP