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Round|Lab Grown|IGI

2.91ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG485161750

Shape and cutting style on the report: Round brilliant

Certificate IGI LG485161750

Diamond specifications and retailer prices

From $3,616 AUD
As of November 5, 2026
Save $7,585 AUD (68%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $11,201 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 2.91ct lab-grown round diamond

This 2.91ct lab-grown round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG485161750 or 485161750. Listed at 10 retailers as of November 5, 2026, with prices from $3,616 to $11,201, a $7,585 spread on the same certified stone. MOH London lists it at $11,201. 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

2.91
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485161750
Dimensions9.08 × 9.15 × 5.58 mm
L/W Ratio1.01
Girdle conditionFaceted
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
9.08 mm9.15 mm2.91 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485161750
Side View
Table 59.0%Crown 35.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.2%

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 5
Current: $11,201 AUD|Low: $3,471 AUD|High: $11,382 AUD|Avg: $5,733 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5$3,616 AUD
Retailer 2$4,067 AUD
Retailer 6$4,194 AUD
Retailer 8$4,194 AUD
Retailer 3$4,200 AUD
Retailer 9$5,154 AUD
Retailer 4$6,155 AUD
Retailer 7$6,535 AUD
MOH London$11,201 AUD

39 data points across 9 retailers

10 retailers$3,616 AUD to $11,201 AUD

A
Cheapest Retailer
-
$3,616 AUD
A
Retailer 2
-
$3,934 AUD
View
A
Retailer 3
-
$4,067 AUD
View
A
Retailer 4
-
$4,194 AUD
View
Retailer 5
-
$4,194 AUD
View
Price last confirmed 25 days ago
A
Retailer 6
-
$4,200 AUD
View
B
Retailer 7
-
$5,765 AUD
View
B
Retailer 8
-
$6,155 AUD
View
B
Retailer 9
-
$6,535 AUD
View
Most Expensive
B
MOH London
LG485161750 · Nov 5
$11,201 AUD
£6,174 GBP
View
9 more retailers have this diamond
Prices start from $3,616 AUDSave up to $7,585 AUD

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
2.91ct Round
$3,616 AUD