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Marquise|Lab Grown|IGI

3.14ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG768631459

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768631459

Diamond specifications and retailer prices

From £14,424 GBP
A$29,733 AUD
As of November 1, 2026
2 retailers carry this diamond
Most expensive: £14,424 GBP at Novita Diamonds
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 LG768631459 or 768631459. Listed at 2 retailers as of November 1, 2026. 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 angle36.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768631459
Dimensions14.67 × 7.54 × 4.81 mm
L/W Ratio1.95
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
14.67 mm7.54 mm3.14 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768631459
Side View
Table 63.0%Crown 36.1°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 63.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: £14,424 GBP|Low: £2,120 GBP|High: £19,257 GBP|Avg: £8,234 GBP|-3.3%
Novita Diamonds
Retailer 2
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November 1, 2026
Retailer 2£2,120 GBP
Retailer 13£2,687 GBP
Retailer 9£2,780 GBP
Retailer 11£3,191 GBP
Retailer 8£3,780 GBP
Retailer 12£4,148 GBP
Retailer 16£4,341 GBP
Retailer 14£5,305 GBP
Retailer 15£5,353 GBP
Retailer 6£7,351 GBP
Retailer 3£9,307 GBP
Retailer 5£14,007 GBP
Novita Diamonds£14,424 GBP
Retailer 4£15,252 GBP
Retailer 10£18,233 GBP
Retailer 7£19,257 GBP

4 data points across 16 retailers

2 retailers

Retailer 1
-
£5,305 GBP
$7,108 USD
Our latest check could not confirm this price
Most Expensive
B
Novita Diamonds
cert_768631459 · Nov 1
£14,424 GBP
A$29,733 AUD
View
1 more retailer has this diamond

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
£14,424 GBP