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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 $3,819 NZD
As of November 5, 2026
Save $8,170 NZD (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $11,990 NZD 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 $3,819 to $11,990, a $8,170 spread on the same certified stone. MOH London lists it at $11,990. 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: $11,990 NZD|Low: $3,668 NZD|High: $12,184 NZD|Avg: $6,626 NZD|-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$3,819 NZD
Retailer 6$4,156 NZD
Retailer 4$4,431 NZD
Retailer 8$5,621 NZD
Retailer 7$6,091 NZD
Retailer 5$6,925 NZD
Retailer 2$6,945 NZD
Retailer 9$9,916 NZD
MOH London$11,990 NZD

13 data points across 9 retailers

8 retailers$3,819 NZD to $11,990 NZD

B+
Cheapest Retailer
-
$3,819 NZD
B
Retailer 2
-
$4,156 NZD
View
Retailer 3
-
$4,431 NZD
View
Price last confirmed 26 days ago
B
Retailer 4
-
$4,431 NZD
View
B
Retailer 5
-
$6,091 NZD
View
B
Retailer 6
-
$6,925 NZD
View
B
Retailer 7
-
$6,945 NZD
View
Most Expensive
B
MOH London
LG447099660 · Nov 5
$11,990 NZD
£5,307 GBP
View
7 more retailers have this diamond
Prices start from $3,819 NZDSave up to $8,170 NZD

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
$3,819 NZD