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Marquise|Lab Grown|IGI

3.05ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG819619460

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG819619460

Diamond specifications and retailer prices

From £1,464 GBP
$1,961 USD
As of October 30, 2026
Save £4,749 GBP (76%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £7,631 GBP at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 3.05ct lab-grown marquise diamond

This 3.05ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG819619460 or 819619460. Listed at 25 retailers as of October 30, 2026, with a 324% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.05
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819619460
Dimensions15.23 × 7.45 × 4.69 mm
L/W Ratio2.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.23 mm7.45 mm3.05 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819619460
Side View
Table 60.0%Crown 35.2°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.0%

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 30
Current: £7,631 GBP|Low: £1,464 GBP|High: £8,175 GBP|Avg: £4,360 GBP|-6.7%
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 15
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Retailer 17
Retailer 18
Retailer 19
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Retailer 23
October 30, 2026
Retailer 12£1,464 GBP
Retailer 6£1,593 GBP
Retailer 5£1,640 GBP
Retailer 17£1,698 GBP
Retailer 19£1,799 GBP
Retailer 21£1,800 GBP
Retailer 4£2,334 GBP
Retailer 2£2,336 GBP
Retailer 23£2,464 GBP
Retailer 18£2,690 GBP
Retailer 9£3,219 GBP
Retailer 14£3,310 GBP
Retailer 16£3,398 GBP
Retailer 13£3,943 GBP
Retailer 10£4,576 GBP
Retailer 7£4,698 GBP
Retailer 20£4,876 GBP
Retailer 8£5,086 GBP
Retailer 15£5,238 GBP
Retailer 3£5,687 GBP
Retailer 11£5,944 GBP
Retailer 22£6,212 GBP
Novita Diamonds£7,631 GBP

35 data points across 23 retailers

25 retailers£1,464 GBP to £6,212 GBP

A
Cheapest Retailer
-
£1,464 GBP
$1,961 USD
A
Retailer 2
-
£1,593 GBP
$2,134 USD
View
A
Retailer 3
-
£1,640 GBP
$2,197 USD
View
Final sale: no returns
A
Retailer 4
-
£1,698 GBP
$2,275 USD
View
A
Retailer 5
-
£1,799 GBP
$2,410 USD
View
A
Retailer 6
-
£1,800 GBP
$2,412 USD
View
Retailer 7
-
£2,316 GBP
$3,103 USD
View
Price last confirmed 17 days ago
A
Retailer 8
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£2,334 GBP
$3,127 USD
View
A
Retailer 9
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£2,336 GBP
View
A
Retailer 10
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£2,464 GBP
$3,301 USD
View
A
Retailer 11
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£2,690 GBP
€3,433 EUR
View
A
Retailer 12
-
£3,219 GBP
View
A
Retailer 13
-
£3,310 GBP
$4,435 USD
View
A
Retailer 14
-
£3,398 GBP
$4,553 USD
View
A
Retailer 15
-
£3,943 GBP
ZAR 85,351 ZAR
View
A
Retailer 16
-
£4,380 GBP
$5,869 USD
View
B+
Retailer 17
-
£4,576 GBP
$6,131 USD
View
B+
Retailer 18
-
£4,698 GBP
$6,295 USD
View
B+
Retailer 19
-
£4,876 GBP
View
B+
Retailer 20
-
£5,086 GBP
$6,814 USD
View
Retailer 21
-
£5,238 GBP
A$10,797 AUD
View
Price last confirmed 8 days ago
B+
Retailer 22
-
£5,687 GBP
$7,620 USD
View
B+
Retailer 23
-
£5,944 GBP
$7,965 USD
View
B+
Retailer 24
-
£6,212 GBP
$8,324 USD
View
Most Expensive
Novita Diamonds
cert_819619460 · Oct 8
£7,631 GBP
A$15,730 AUD
View
Price last confirmed 21 days ago
24 more retailers have this diamond
Prices start from £1,464 GBPSave up to £4,749 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
3.05ct Marquise
£1,464 GBP