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Princess|Lab Grown|IGI

1.85ct K SI1 Princess Lab Grown Diamond

ID • K/SI1 • IGI LG455032978

Shape and cutting style on the report: Princess cut

Certificate IGI LG455032978

Diamond specifications and retailer prices

From $1,117 USD
As of November 6, 2026
Save $3,035 USD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,152 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.85ct lab-grown princess diamond

This 1.85ct 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 LG455032978 or 455032978. Listed at 10 retailers as of November 5, 2026, with prices from $1,117 to $4,152, a $3,035 spread on the same certified stone. MOH London lists it at $4,152. 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

1.85
Carat
K
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle41.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455032978
Dimensions6.73 × 6.59 × 4.86 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
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Top View
6.73 mm6.59 mm1.85 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG455032978
Side View
Table 73.0%Crown 41.7°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 73.7%

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: $4,152 USD|Low: $1,072 USD|High: $4,213 USD|Avg: $2,112 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4$1,117 USD
Retailer 5$1,296 USD
Retailer 7$1,296 USD
Retailer 3$1,470 USD
Retailer 2$1,800 USD
Retailer 9$1,867 USD
Retailer 6$2,062 USD
Retailer 8$2,628 USD
MOH London$4,152 USD

40 data points across 9 retailers

10 retailers$1,117 USD to $4,152 USD

A
Cheapest Retailer
-
$1,117 USD
A
Retailer 2
-
$1,215 USD
View
Retailer 3
-
$1,296 USD
View
Price last confirmed 25 days ago
A
Retailer 4
-
$1,296 USD
View
B+
Retailer 5
-
$1,470 USD
View
B+
Retailer 6
-
$1,800 USD
View
B+
Retailer 7
-
$2,062 USD
View
B
Retailer 8
-
$2,429 USD
View
B
Retailer 9
-
$2,628 USD
View
Most Expensive
B
MOH London
LG455032978 · Nov 5
$4,152 USD
£3,269 GBP
View
9 more retailers have this diamond
Prices start from $1,117 USDSave up to $3,035 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
1.85ct Princess
$1,117 USD