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Round|Lab Grown|IGI

1.51ct E SI1 Round Lab Grown Diamond

VG • E/SI1 • IGI LG12201310

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12201310

Diamond specifications and retailer prices

From $477 AUD
As of November 5, 2026
Save $2,072 AUD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,549 AUD at MOH London · As of November 3, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG12201310 or 12201310. Listed at 18 retailers as of November 3, 2026, with prices from $477 to $2,549, a $2,072 spread on the same certified stone. MOH London lists it at $2,549. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12201310
Dimensions7.17 × 7.20 × 4.65 mm
L/W Ratio1.00
Culet sizeNone
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
7.17 mm7.20 mm1.51 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12201310
Side View
Table 57.5%Crown 36.5°Girdle: STK-UNDPavilion 41.3°Culet: NoneDepth 64.7%

Caratlytics Score

How it works →
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: $2,549 AUD|Low: $477 AUD|High: $2,558 AUD|Avg: $1,260 AUD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 3$477 AUD
Retailer 4$510 AUD
Retailer 16$553 AUD
Retailer 7$591 AUD
Retailer 15$591 AUD
Retailer 14$603 AUD
Retailer 8$807 AUD
Retailer 12$939 AUD
Retailer 17$1,064 AUD
Retailer 11$1,117 AUD
Retailer 2$1,161 AUD
Retailer 10$1,197 AUD
Retailer 18$1,733 AUD
Retailer 9$1,864 AUD
Retailer 13$2,086 AUD
Retailer 6$2,097 AUD
Retailer 5$2,320 AUD
MOH London$2,549 AUD

21 data points across 18 retailers

18 retailers$477 AUD to $2,549 AUD

A
Cheapest Retailer
-
$477 AUD
A
Retailer 2
-
$510 AUD
View
A
Retailer 3
-
$553 AUD
View
Retailer 4
-
$591 AUD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$591 AUD
View
B+
Retailer 6
-
$603 AUD
View
B+
Retailer 7
-
$807 AUD
View
B+
Retailer 8
-
$939 AUD
View
B
Retailer 9
-
$1,064 AUD
View
B+
Retailer 10
-
$1,117 AUD
View
B
Retailer 11
-
$1,161 AUD
View
B
Retailer 12
-
$1,197 AUD
View
B
Retailer 13
-
$1,733 AUD
View
B
Retailer 14
-
$1,864 AUD
View
B
Retailer 15
-
$2,086 AUD
View
B
Retailer 16
-
$2,097 AUD
View
B
Retailer 17
-
$2,320 AUD
View
Most Expensive
B
MOH London
LG12201310 · Nov 3
$2,549 AUD
£1,405 GBP
View
17 more retailers have this diamond
Prices start from $477 AUDSave up to $2,072 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
1.51ct Round
$477 AUD