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Marquise|Lab Grown|IGI

3.03ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG780662880

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780662880

Diamond specifications and retailer prices

From £2,629 GBP
$3,523 USD
As of October 31, 2026
Save £10,552 GBP (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £13,182 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

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 LG780662880 or 780662880. Listed at 14 retailers as of October 30, 2026, with prices from £2,629 to £13,182, a £10,552 spread on the same certified stone. Taylor and Hart lists it at £13,182. 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 angle35.7°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662880
Dimensions15.22 × 7.41 × 4.69 mm
L/W Ratio2.05
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
15.22 mm7.41 mm3.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662880
Side View
Table 57.0%Crown 35.7°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 63.3%

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 31
Current: £4,793 GBP|Low: £2,629 GBP|High: £13,182 GBP|Avg: £7,134 GBP|-14.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
October 31, 2026
Retailer 10£2,629 GBP
Retailer 12£3,164 GBP
Retailer 4£4,691 GBP
Retailer 1£4,793 GBP
Retailer 11£5,549 GBP
Retailer 3£5,691 GBP
Retailer 8£6,069 GBP
Retailer 6£6,284 GBP
Retailer 9£7,704 GBP
Retailer 13£8,369 GBP
Retailer 5£8,499 GBP
Retailer 7£8,593 GBP
Retailer 2£9,950 GBP
Taylor and Hart£13,182 GBP

39 data points across 14 retailers

14 retailers£2,629 GBP to £13,182 GBP

A
Cheapest Retailer
-
£2,629 GBP
$3,523 USD
A
Retailer 2
-
£3,164 GBP
$4,239 USD
View
B+
Retailer 3
-
£4,691 GBP
HK$49,100 HKD
View
B+
Retailer 4
-
£4,793 GBP
View
B+
Retailer 5
-
£5,549 GBP
$7,435 USD
View
B+
Retailer 6
-
£5,691 GBP
$7,625 USD
View
B+
Retailer 7
-
£6,069 GBP
€7,745 EUR
View
B+
Retailer 8
-
£6,284 GBP
$8,420 USD
View
B+
Retailer 9
-
£7,704 GBP
View
B+
Retailer 10
-
£8,369 GBP
$11,214 USD
View
B
Retailer 11
-
£8,499 GBP
$11,388 USD
View
B+
Retailer 12
-
£8,593 GBP
ZAR 185,999 ZAR
View
Retailer 13
-
£9,950 GBP
$13,332 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Taylor and Hart
DYL4N00 · Oct 30
£13,182 GBP
$17,662 USD
View
13 more retailers have this diamond
Prices start from £2,629 GBPSave up to £10,552 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
£2,629 GBP