CaratHunter
Plans
Marquise|Lab Grown|IGI

3.05ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG784642089

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG784642089

Diamond specifications and retailer prices

From £2,599 GBP
$3,482 USD
As of October 30, 2026
Save £15,283 GBP (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £17,882 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.05ct lab-grown marquise diamond

This 3.05ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784642089 or 784642089. Listed at 14 retailers as of October 30, 2026, with prices from £2,599 to £17,882, a £15,283 spread on the same certified stone. Do Amore Diamonds lists it at £17,882. 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
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784642089
Dimensions14.30 × 7.54 × 4.91 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
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
14.30 mm7.54 mm3.05 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784642089
Side View
Table 59.0%Crown 35.6°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 65.1%

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: £17,882 GBP|Low: £2,599 GBP|High: £20,584 GBP|Avg: £5,913 GBP|-13.1%
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 31, 2026
Retailer 9£2,599 GBP
Retailer 10£2,722 GBP
Retailer 7£2,844 GBP
Retailer 5£2,854 GBP
Retailer 12£3,131 GBP
Retailer 6£3,516 GBP
Retailer 2£4,158 GBP
Retailer 14£4,158 GBP
Retailer 4£4,720 GBP
Retailer 3£5,560 GBP
Retailer 11£5,693 GBP
Retailer 8£6,754 GBP
Retailer 13£7,166 GBP
Do Amore Diamonds£17,882 GBP

33 data points across 14 retailers

14 retailers£2,599 GBP to £17,882 GBP

A
Cheapest Retailer
-
£2,599 GBP
$3,482 USD
A
Retailer 2
-
£2,722 GBP
$3,647 USD
View
A
Retailer 3
-
£2,844 GBP
$3,810 USD
View
A
Retailer 4
-
£2,854 GBP
$3,824 USD
View
A
Retailer 5
-
£3,131 GBP
$4,195 USD
View
A
Retailer 6
-
£3,516 GBP
$4,711 USD
View
Final sale: no returns
A
Retailer 7
-
£4,158 GBP
$5,571 USD
View
A
Retailer 8
-
£4,158 GBP
$5,571 USD
View
B+
Retailer 9
-
£4,720 GBP
$6,324 USD
View
B+
Retailer 10
-
£5,560 GBP
$7,450 USD
View
B+
Retailer 11
-
£5,693 GBP
€7,265 EUR
View
B+
Retailer 12
-
£6,754 GBP
$9,050 USD
View
B+
Retailer 13
-
£7,166 GBP
View
Most Expensive
B
Do Amore Diamonds
27-682C86870 · Oct 31
£17,882 GBP
$23,960 USD
View
13 more retailers have this diamond
Prices start from £2,599 GBPSave up to £15,283 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
£2,599 GBP