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Round|Lab Grown|IGI

1.50ct K SI1 Round Lab Grown Diamond

VG • K/SI1 • IGI LG407950682

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407950682

Diamond specifications and retailer prices

From $1,334 AUD
As of November 5, 2026
Save $3,914 AUD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $5,248 AUD at MOH London · As of November 3, 2026
View at MOH London

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG407950682 or 407950682. Listed at 9 retailers as of November 3, 2026, with prices from $1,334 to $5,248, a $3,914 spread on the same certified stone. MOH London lists it at $5,248. 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

1.50
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407950682
Dimensions7.43 × 7.50 × 4.33 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.43 mm7.50 mm1.50 ctK / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG407950682
Side View
Table 62.0%Crown 31.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 58.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $5,248 AUD|Low: $1,281 AUD|High: $5,319 AUD|Avg: $2,788 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4$1,334 AUD
Retailer 5$1,547 AUD
Retailer 7$1,547 AUD
Retailer 2$1,800 AUD
Retailer 8$2,280 AUD
Retailer 6$2,478 AUD
Retailer 3$3,443 AUD
Retailer 9$4,430 AUD
MOH London$5,248 AUD

18 data points across 9 retailers

9 retailers$1,334 AUD to $5,248 AUD

B+
Cheapest Retailer
-
$1,334 AUD
B+
Retailer 2
-
$1,451 AUD
View
B+
Retailer 3
-
$1,547 AUD
View
Retailer 4
-
$1,547 AUD
View
Price last confirmed 25 days ago
B+
Retailer 5
-
$1,800 AUD
View
B
Retailer 6
-
$2,478 AUD
View
B
Retailer 7
-
$3,443 AUD
View
C
Retailer 8
-
$4,351 AUD
View
Most Expensive
C
MOH London
LG407950682 · Nov 3
$5,248 AUD
£2,893 GBP
View
8 more retailers have this diamond
Prices start from $1,334 AUDSave up to $3,914 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.

B+
1.50ct Round
$1,334 AUD