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Marquise|Lab Grown|IGI

3.00ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG843654684

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843654684

Diamond specifications and retailer prices

From £1,363 GBP
$1,826 USD
As of October 30, 2026
Save £5,692 GBP (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £7,055 GBP at Novita Diamonds · As of October 31, 2026
View at Novita Diamonds

About this 3ct lab-grown marquise diamond

This 3ct 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 LG843654684 or 843654684. Listed at 18 retailers as of October 30, 2026, with prices from £1,363 to £7,055, a £5,692 spread on the same certified stone. Novita Diamonds lists it at £7,055. 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

3.00
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843654684
Dimensions15.81 × 7.26 × 4.18 mm
L/W Ratio2.18
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.81 mm7.26 mm3.00 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843654684
Side View
Table 67.0%Crown 34.1°Girdle: MED-STKPavilion 35.7°Culet: NoneDepth 57.6%

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 30
Current: £7,055 GBP|Low: £1,363 GBP|High: £7,156 GBP|Avg: £3,220 GBP|-1.4%
Novita 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
Retailer 15
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Retailer 17
Retailer 18
October 31, 2026
Retailer 3£1,363 GBP
Retailer 5£1,526 GBP
Retailer 7£1,581 GBP
Retailer 4£1,705 GBP
Retailer 12£1,745 GBP
Retailer 2£2,242 GBP
Retailer 16£2,260 GBP
Retailer 10£2,368 GBP
Retailer 11£2,423 GBP
Retailer 15£2,493 GBP
Retailer 6£2,962 GBP
Retailer 9£3,276 GBP
Retailer 18£3,575 GBP
Retailer 13£3,670 GBP
Retailer 17£4,082 GBP
Retailer 14£4,538 GBP
Retailer 8£5,539 GBP
Novita Diamonds£7,055 GBP

28 data points across 18 retailers

18 retailers£1,363 GBP to £7,055 GBP

A
Cheapest Retailer
-
£1,363 GBP
$1,826 USD
A
Retailer 2
-
£1,526 GBP
$2,045 USD
View
Final sale: no returns
A
Retailer 3
-
£1,581 GBP
$2,118 USD
View
A
Retailer 4
-
£1,705 GBP
$2,285 USD
View
A
Retailer 5
-
£1,745 GBP
View
A
Retailer 6
-
£2,242 GBP
View
A
Retailer 7
-
£2,260 GBP
$3,028 USD
View
A
Retailer 8
-
£2,368 GBP
$3,173 USD
View
A
Retailer 9
-
£2,423 GBP
$3,246 USD
View
A
Retailer 10
-
£2,493 GBP
€3,181 EUR
View
A
Retailer 11
-
£2,962 GBP
$3,969 USD
View
A
Retailer 12
-
£3,276 GBP
View
Retailer 13
-
£3,575 GBP
A$7,369 AUD
View
Price last confirmed 9 days ago
A
Retailer 14
-
£3,670 GBP
ZAR 79,441 ZAR
View
A
Retailer 15
-
£4,082 GBP
$5,470 USD
View
B+
Retailer 16
-
£4,538 GBP
View
B+
Retailer 17
-
£5,539 GBP
$7,421 USD
View
Most Expensive
B
Novita Diamonds
cert_843654684 · Oct 31
£7,055 GBP
A$14,542 AUD
View
17 more retailers have this diamond
Prices start from £1,363 GBPSave up to £5,692 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
3.00ct Marquise
£1,363 GBP