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Marquise|Lab Grown|IGI

3.10ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG846662786

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846662786

Diamond specifications and retailer prices

From £3,025 GBP
$4,053 USD
As of October 30, 2026
Save £10,385 GBP (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £13,410 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 LG846662786 or 846662786. Listed at 12 retailers as of October 30, 2026, with prices from £3,025 to £13,410, a £10,385 spread on the same certified stone. With Clarity lists it at £13,410. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662786
Dimensions14.46 × 7.57 × 4.74 mm
L/W Ratio1.91
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
14.46 mm7.57 mm3.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662786
Side View
Table 60.0%Crown 35.4°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 62.6%

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: £3,332 GBP|Low: £3,025 GBP|High: £15,019 GBP|Avg: £6,099 GBP|-7.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
October 31, 2026
Retailer 6£3,025 GBP
Retailer 1£3,332 GBP
Retailer 5£3,437 GBP
Retailer 9£3,842 GBP
Retailer 4£4,353 GBP
Retailer 3£5,283 GBP
Retailer 11£5,959 GBP
Retailer 7£6,436 GBP
Retailer 2£6,480 GBP
Retailer 10£7,252 GBP
Retailer 8£7,254 GBP
With Clarity£13,410 GBP

14 data points across 12 retailers

12 retailers£3,025 GBP to £13,410 GBP

A
Cheapest Retailer
-
£3,025 GBP
$4,053 USD
A
Retailer 2
-
£3,332 GBP
$4,465 USD
View
A
Retailer 3
-
£3,437 GBP
$4,605 USD
View
A
Retailer 4
-
£3,842 GBP
View
A
Retailer 5
-
£4,353 GBP
$5,833 USD
View
B+
Retailer 6
-
£5,283 GBP
$7,079 USD
View
B+
Retailer 7
-
£5,959 GBP
$7,985 USD
View
B+
Retailer 8
-
£6,436 GBP
$8,624 USD
View
B+
Retailer 9
-
£6,480 GBP
€8,269 EUR
View
B+
Retailer 10
-
£7,252 GBP
View
B+
Retailer 11
-
£7,254 GBP
$9,720 USD
View
Most Expensive
B
With Clarity
846662786 · Oct 31
£13,410 GBP
$17,968 USD
View
11 more retailers have this diamond
Prices start from £3,025 GBPSave up to £10,385 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
£3,025 GBP