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Princess|Lab Grown|IGI

1.80ct K SI1 Princess Lab Grown Diamond

ID • K/SI1 • IGI LG447099800

Shape and cutting style on the report: Princess cut

Certificate IGI LG447099800

Diamond specifications and retailer prices

From $1,088 USD
As of November 6, 2026
Save $3,179 USD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,267 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.8ct lab-grown princess diamond

This 1.8ct lab-grown princess sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447099800 or 447099800. Listed at 9 retailers as of November 5, 2026, with prices from $1,088 to $4,267, a $3,179 spread on the same certified stone. MOH London lists it at $4,267. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.4°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099800
Dimensions6.55 × 6.54 × 4.74 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
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Top View
6.55 mm6.54 mm1.80 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099800
Side View
Table 72.5%Crown 45.4°Girdle: Slightly ThickPavilion 38.7°Culet: NoneDepth 72.5%

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 6
Current: $4,267 USD|Low: $1,088 USD|High: $4,336 USD|Avg: $2,493 USD|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3$1,088 USD
Retailer 2$1,435 USD
Retailer 6$1,823 USD
Retailer 4$2,008 USD
Retailer 5$2,559 USD
Retailer 7$3,611 USD
MOH London$4,267 USD

15 data points across 7 retailers

9 retailers$1,088 USD to $4,267 USD

A
Cheapest Retailer
-
$1,088 USD
A
Retailer 2
-
$1,183 USD
View
A
Retailer 3
-
$1,262 USD
View
Retailer 4
-
$1,262 USD
View
Price last confirmed 25 days ago
A
Retailer 5
-
$1,435 USD
View
B+
Retailer 6
-
$2,008 USD
View
B
Retailer 7
-
$2,365 USD
View
B
Retailer 8
-
$2,559 USD
View
Most Expensive
B
MOH London
LG447099800 · Nov 5
$4,267 USD
£3,360 GBP
View
8 more retailers have this diamond
Prices start from $1,088 USDSave up to $3,179 USD

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
1.80ct Princess
$1,088 USD