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Marquise|Lab Grown|IGI

3.03ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG790612027

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790612027

Diamond specifications and retailer prices

From £3,389 GBP
$4,541 USD
As of October 30, 2026
Save £10,659 GBP (76%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £14,048 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 LG790612027 or 790612027. Listed at 24 retailers as of October 30, 2026, with prices from £3,389 to £14,048, a £10,659 spread on the same certified stone. Taylor and Hart lists it at £14,048. 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°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790612027
Dimensions14.50 × 7.59 × 4.80 mm
L/W Ratio1.91
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
14.50 mm7.59 mm3.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790612027
Side View
Table 58.0%Crown 37°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 63.2%

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: £5,106 GBP|Low: £3,254 GBP|High: £13,522 GBP|Avg: £6,189 GBP|+0.2%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 31, 2026
Retailer 18£3,389 GBP
Retailer 6£3,552 GBP
Retailer 9£3,664 GBP
Retailer 10£3,796 GBP
Retailer 3£3,932 GBP
Retailer 7£3,932 GBP
Retailer 17£3,959 GBP
Retailer 5£4,913 GBP
Retailer 16£5,021 GBP
Retailer 1£5,106 GBP
Retailer 11£5,539 GBP
Retailer 19£5,997 GBP
Retailer 4£6,081 GBP
Retailer 14£6,416 GBP
Retailer 15£8,185 GBP
Retailer 12£8,904 GBP
Retailer 13£9,128 GBP
Retailer 2£9,902 GBP
Retailer 8£13,522 GBP

42 data points across 19 retailers

24 retailers£3,389 GBP to £14,048 GBP

A
Cheapest Retailer
-
£3,389 GBP
$4,541 USD
A
Retailer 2
-
£3,552 GBP
$4,759 USD
View
A
Retailer 3
-
£3,574 GBP
$4,789 USD
View
A
Retailer 4
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£3,664 GBP
$4,910 USD
View
A
Retailer 5
-
£3,796 GBP
$5,086 USD
View
Final sale: no returns
Retailer 6
-
£3,932 GBP
$5,268 USD
View
Price last confirmed 15 days ago
A
Retailer 7
-
£3,932 GBP
$5,268 USD
View
A
Retailer 8
-
£3,959 GBP
$5,305 USD
View
A
Retailer 9
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£4,671 GBP
HK$48,900 HKD
View
B+
Retailer 10
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£4,913 GBP
$6,583 USD
View
B+
Retailer 11
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£5,021 GBP
$6,728 USD
View
B+
Retailer 12
-
£5,106 GBP
View
B+
Retailer 13
-
£5,539 GBP
View
Retailer 14
-
£5,997 GBP
$8,035 USD
View
Price last confirmed 24 days ago
B+
Retailer 15
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£6,081 GBP
$8,148 USD
View
B+
Retailer 16
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£6,416 GBP
€8,187 EUR
View
B+
Retailer 17
-
£8,185 GBP
View
B+
Retailer 18
-
£8,904 GBP
$11,930 USD
View
B+
Retailer 19
-
£9,128 GBP
ZAR 197,592 ZAR
View
B
Retailer 20
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£9,466 GBP
$12,684 USD
View
B
Retailer 21
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£9,902 GBP
$13,267 USD
View
B
Retailer 22
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£11,459 GBP
$15,354 USD
View
B
Retailer 23
-
£13,522 GBP
SGD 24,483 SGD
View
Most Expensive
B
Taylor and Hart
467C1NR · Oct 30
£14,048 GBP
$18,823 USD
View
23 more retailers have this diamond
Prices start from £3,389 GBPSave up to £10,659 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
£3,389 GBP