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 $716 USD
As of November 1, 2026
Save $1,620 USD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,279 USD at MOH London · As of October 21, 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 October 31, 2026, with a 226% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,279 USD|Low: $573 USD|High: $3,302 USD|Avg: $1,573 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 28, 2026
Retailer 4$716 USD
Retailer 6$802 USD
Retailer 2$1,010 USD
Retailer 7$1,135 USD
Retailer 5$1,348 USD
Retailer 8$1,536 USD
Retailer 3$2,046 USD
MOH London$3,279 USD

14 data points across 8 retailers

12 retailers$716 USD to $2,336 USD

A
Cheapest Retailer
-
$716 USD
A
Retailer 2
-
$779 USD
View
A
Retailer 3
-
$802 USD
View
Final sale: no returns
Retailer 4
-
$831 USD
View
Price last confirmed 20 days ago
A
Retailer 5
-
$831 USD
View
A
Retailer 6
-
$1,010 USD
View
A
Retailer 7
-
$1,135 USD
View
A
Retailer 8
-
$1,348 USD
View
A
Retailer 9
-
$1,536 USD
View
A
Retailer 10
-
$2,046 USD
View
A
Retailer 11
-
$2,336 USD
View
Most Expensive
MOH London
LG514289516 · Oct 21
$3,279 USD
£2,582 GBP
View
Price last confirmed 11 days ago
11 more retailers have this diamond
Prices start from $716 USDSave up to $1,620 USD

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
$716 USD