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Round|Lab Grown|IGI

1.80ct K SI2 Round Lab Grown Diamond

ID • K/SI2 • IGI LG447099660

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447099660

Diamond specifications and retailer prices

From $3,067 AUD
As of November 5, 2026
Save $6,561 AUD (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $9,628 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.8ct lab-grown round diamond

This 1.8ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447099660 or 447099660. Listed at 8 retailers as of November 5, 2026, with prices from $3,067 to $9,628, a $6,561 spread on the same certified stone. MOH London lists it at $9,628. 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

1.80
Carat
K
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099660
Dimensions7.77 × 7.81 × 4.84 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.77 mm7.81 mm1.80 ctK / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099660
Side View
Table 54.5%Crown 35.2°GirdlePavilion 40.3°Culet: NoneDepth 62.0%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $9,628 AUD|Low: $2,946 AUD|High: $9,784 AUD|Avg: $5,321 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3$3,067 AUD
Retailer 6$3,337 AUD
Retailer 4$3,558 AUD
Retailer 8$4,514 AUD
Retailer 7$4,891 AUD
Retailer 5$5,561 AUD
Retailer 2$5,577 AUD
Retailer 9$7,962 AUD
MOH London$9,628 AUD

13 data points across 9 retailers

8 retailers$3,067 AUD to $9,628 AUD

B+
Cheapest Retailer
-
$3,067 AUD
B
Retailer 2
-
$3,337 AUD
View
Retailer 3
-
$3,558 AUD
View
Price last confirmed 26 days ago
B
Retailer 4
-
$3,558 AUD
View
B
Retailer 5
-
$4,891 AUD
View
B
Retailer 6
-
$5,561 AUD
View
B
Retailer 7
-
$5,577 AUD
View
Most Expensive
B
MOH London
LG447099660 · Nov 5
$9,628 AUD
£5,307 GBP
View
7 more retailers have this diamond
Prices start from $3,067 AUDSave up to $6,561 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+
1.80ct Round
$3,067 AUD