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Marquise|Lab Grown|IGI

3.10ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG804659668

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG804659668

Diamond specifications and retailer prices

From £3,453 GBP
$4,627 USD
As of October 31, 2026
Save £11,581 GBP (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £15,034 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 3.1ct lab-grown marquise diamond

This 3.1ct 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 LG804659668 or 804659668. Listed at 10 retailers as of October 31, 2026, with prices from £3,453 to £15,034, a £11,581 spread on the same certified stone. With Clarity lists it at £15,034. 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

3.10
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659668
Dimensions15.94 × 7.55 × 4.57 mm
L/W Ratio2.11
Girdle conditionFaceted
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
15.94 mm7.55 mm3.10 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659668
Side View
Table 61.0%Crown 33.3°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 60.5%

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: £4,903 GBP|Low: £3,453 GBP|High: £17,680 GBP|Avg: £8,445 GBP|-14.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
October 31, 2026
Retailer 7£3,453 GBP
Retailer 9£4,738 GBP
Retailer 1£4,903 GBP
Retailer 8£5,821 GBP
Retailer 4£6,210 GBP
Retailer 3£6,866 GBP
Retailer 2£7,703 GBP
Retailer 5£7,874 GBP
Retailer 6£10,180 GBP
Retailer 10£13,487 GBP
With Clarity£15,034 GBP

37 data points across 11 retailers

10 retailers£3,453 GBP to £15,034 GBP

A
Cheapest Retailer
-
£3,453 GBP
$4,627 USD
B+
Retailer 2
-
£4,738 GBP
HK$49,600 HKD
View
B+
Retailer 3
-
£4,903 GBP
View
B+
Retailer 4
-
£5,821 GBP
$7,800 USD
View
B+
Retailer 5
-
£6,210 GBP
€7,924 EUR
View
B+
Retailer 6
-
£6,866 GBP
$9,200 USD
View
B+
Retailer 7
-
£7,874 GBP
View
Retailer 8
-
£10,180 GBP
$13,640 USD
View
Price last confirmed 7 days ago
B
Retailer 9
-
£13,487 GBP
$18,071 USD
View
Most Expensive
B
With Clarity
804659668 · Oct 31
£15,034 GBP
$20,144 USD
View
9 more retailers have this diamond
Prices start from £3,453 GBPSave up to £11,581 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
3.10ct Marquise
£3,453 GBP