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Marquise|Lab Grown|IGI

3.03ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG780665483

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780665483

Diamond specifications and retailer prices

From £2,582 GBP
$3,460 USD
As of October 30, 2026
Save £15,188 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £17,770 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.03ct lab-grown marquise diamond

This 3.03ct 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 LG780665483 or 780665483. Listed at 15 retailers as of October 30, 2026, with prices from £2,582 to £17,770, a £15,188 spread on the same certified stone. Do Amore Diamonds lists it at £17,770. 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

3.03
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665483
Dimensions14.30 × 7.37 × 4.79 mm
L/W Ratio1.94
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 mm7.37 mm3.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665483
Side View
Table 62.0%Crown 37.8°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 65.0%

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: £17,770 GBP|Low: £2,582 GBP|High: £20,457 GBP|Avg: £6,043 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
Retailer 15
October 31, 2026
Retailer 10£2,582 GBP
Retailer 11£2,704 GBP
Retailer 8£2,826 GBP
Retailer 6£2,836 GBP
Retailer 13£3,112 GBP
Retailer 7£3,494 GBP
Retailer 2£4,132 GBP
Retailer 3£4,132 GBP
Retailer 5£4,690 GBP
Retailer 4£5,545 GBP
Retailer 12£5,657 GBP
Retailer 9£6,710 GBP
Retailer 14£7,121 GBP
Retailer 15£8,202 GBP
Do Amore Diamonds£17,770 GBP

34 data points across 15 retailers

15 retailers£2,582 GBP to £17,770 GBP

A
Cheapest Retailer
-
£2,582 GBP
$3,460 USD
A
Retailer 2
-
£2,704 GBP
$3,623 USD
View
A
Retailer 3
-
£2,826 GBP
$3,787 USD
View
A
Retailer 4
-
£2,836 GBP
$3,800 USD
View
A
Retailer 5
-
£3,112 GBP
$4,170 USD
View
A
Retailer 6
-
£3,494 GBP
$4,682 USD
View
Final sale: no returns
A
Retailer 7
-
£4,132 GBP
$5,537 USD
View
A
Retailer 8
-
£4,132 GBP
$5,537 USD
View
B+
Retailer 9
-
£4,690 GBP
$6,284 USD
View
B+
Retailer 10
-
£5,545 GBP
$7,430 USD
View
B+
Retailer 11
-
£5,657 GBP
€7,219 EUR
View
B+
Retailer 12
-
£6,710 GBP
$8,990 USD
View
B+
Retailer 13
-
£7,121 GBP
View
B+
Retailer 14
-
£8,202 GBP
$10,990 USD
View
Most Expensive
B
Do Amore Diamonds
27-0FF333B5A · Oct 31
£17,770 GBP
$23,810 USD
View
14 more retailers have this diamond
Prices start from £2,582 GBPSave up to £15,188 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
3.03ct Marquise
£2,582 GBP