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Marquise|Lab Grown|IGI

3.14ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG768631010

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768631010

Diamond specifications and retailer prices

From £9,799 GBP
$13,130 USD
As of October 31, 2026
Save £4,625 GBP (32%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £14,424 GBP at Novita Diamonds · As of November 1, 2026
View at Novita Diamonds

About this 3.14ct lab-grown marquise diamond

This 3.14ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768631010 or 768631010. Listed at 2 retailers as of October 31, 2026, with prices from £9,799 to £14,424, a £4,625 spread on the same certified stone. Novita Diamonds lists it at £14,424. 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

3.14
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768631010
Dimensions14.53 × 7.64 × 4.81 mm
L/W Ratio1.90
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
14.53 mm7.64 mm3.14 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768631010
Side View
Table 58.0%Crown 38.9°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 63.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: £14,424 GBP|Low: £3,519 GBP|High: £19,621 GBP|Avg: £9,774 GBP|-3.3%
Novita Diamonds
Retailer 2
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November 1, 2026
Retailer 13£3,519 GBP
Retailer 10£3,651 GBP
Retailer 16£4,187 GBP
Retailer 7£4,650 GBP
Retailer 9£4,656 GBP
Retailer 12£5,070 GBP
Retailer 15£7,351 GBP
Retailer 3£8,529 GBP
Retailer 6£9,799 GBP
Retailer 8£11,101 GBP
Retailer 5£11,102 GBP
Retailer 14£14,007 GBP
Novita Diamonds£14,424 GBP
Retailer 2£15,252 GBP
Retailer 4£19,257 GBP
Retailer 11£19,621 GBP

4 data points across 16 retailers

2 retailers£9,799 GBP to £14,424 GBP

B
Cheapest Retailer
-
£9,799 GBP
$13,130 USD
Most Expensive
B
Novita Diamonds
cert_768631010 · Nov 1
£14,424 GBP
A$29,733 AUD
View
1 more retailer has this diamond
Prices start from £9,799 GBPSave up to £4,625 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.

B
3.14ct Marquise
£9,799 GBP