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Round|Lab Grown|IGI

1.51ct G SI1 Round Lab Grown Diamond

VG • G/SI1 • IGI LG224661776

Shape and cutting style on the report: Round brilliant

Certificate IGI LG224661776

Diamond specifications and retailer prices

From $407 AUD
$286 USD
As of November 1, 2026
Save $1,822 AUD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,229 AUD at MOH London · As of November 1, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG224661776 or 224661776. Listed at 15 retailers as of November 1, 2026, with prices from $407 to $2,229, a $1,822 spread on the same certified stone. MOH London lists it at $2,229. 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
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG224661776
Dimensions7.24 × 7.17 × 4.68 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
The laboratory grown diamond described above is classified as Type IIa. Laserscribe on Girdle: "LAB GROWN LG 224661776"
Top View
7.24 mm7.17 mm1.51 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG224661776
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 64.9%

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 1
Current: $2,229 AUD|Low: $319 AUD|High: $2,242 AUD|Avg: $896 AUD|+27.6%
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
November 1, 2026
Retailer 15$407 AUD
Retailer 7$433 AUD
Retailer 11$471 AUD
Retailer 5$504 AUD
Retailer 10$504 AUD
Retailer 16$531 AUD
Retailer 14$726 AUD
Retailer 13$829 AUD
Retailer 12$982 AUD
Retailer 9$989 AUD
Retailer 6$989 AUD
Retailer 2$991 AUD
Retailer 8$1,171 AUD
Retailer 4$1,789 AUD
Retailer 3$1,805 AUD
MOH London$2,229 AUD

19 data points across 16 retailers

15 retailers$407 AUD to $2,229 AUD

A
Cheapest Retailer
-
$407 AUD
$286 USD
B+
Retailer 2
-
$471 AUD
$331 USD
View
B+
Retailer 3
-
$504 AUD
$354 USD
View
B+
Retailer 4
-
$531 AUD
$373 USD
View
B+
Retailer 5
-
$726 AUD
$510 USD
View
B+
Retailer 6
-
$829 AUD
$582 USD
View
B+
Retailer 7
-
$829 AUD
$582 USD
View
B
Retailer 8
-
$982 AUD
$690 USD
View
B
Retailer 9
-
$989 AUD
£547 GBP
View
Retailer 10
-
$989 AUD
$695 USD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
$991 AUD
£548 GBP
View
B
Retailer 12
-
$1,171 AUD
$822 USD
View
B
Retailer 13
-
$1,789 AUD
$1,257 USD
View
B
Retailer 14
-
$1,805 AUD
$1,268 USD
View
Most Expensive
C
MOH London
LG_224661776 · Nov 1
$2,229 AUD
£1,233 GBP
View
14 more retailers have this diamond
Prices start from $407 AUDSave up to $1,822 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
$407 AUD