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Round|Lab Grown|IGI

3.14ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG514289516

Shape and cutting style on the report: Round brilliant

Certificate IGI LG514289516

Diamond specifications and retailer prices

From £532 GBP
As of November 5, 2026
Save £1,892 GBP (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,424 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 3.14ct lab-grown round diamond

This 3.14ct lab-grown round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG514289516 or 514289516. Listed at 12 retailers as of November 3, 2026, with prices from £532 to £2,424, a £1,892 spread on the same certified stone. MOH London lists it at £2,424. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.14
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514289516
Dimensions9.37 × 9.34 × 5.78 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.37 mm9.34 mm3.14 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514289516
Side View
Table 59.5%Crown 35.3°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £2,424 GBP|Low: £426 GBP|High: £2,453 GBP|Avg: £1,164 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 4£532 GBP
Retailer 6£596 GBP
Retailer 2£750 GBP
Retailer 7£843 GBP
Retailer 5£1,002 GBP
Retailer 8£1,141 GBP
Retailer 3£1,520 GBP
MOH London£2,424 GBP

15 data points across 8 retailers

12 retailers£532 GBP to £2,424 GBP

A
Cheapest Retailer
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£532 GBP
A
Retailer 2
-
£579 GBP
View
A
Retailer 3
-
£596 GBP
View
Final sale: no returns
Retailer 4
-
£617 GBP
View
Price last confirmed 25 days ago
A
Retailer 5
-
£617 GBP
View
A
Retailer 6
-
£750 GBP
View
A
Retailer 7
-
£843 GBP
View
A
Retailer 8
-
£1,002 GBP
View
A
Retailer 9
-
£1,141 GBP
View
A
Retailer 10
-
£1,520 GBP
View
A
Retailer 11
-
£1,736 GBP
View
Most Expensive
A
MOH London
LG514289516 · Nov 3
£2,424 GBP
View
11 more retailers have this diamond
Prices start from £532 GBPSave up to £1,892 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
3.14ct Round
£532 GBP