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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 $1,596 AUD
As of November 6, 2026
Save $4,335 AUD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,931 AUD 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 $1,596 to $5,931, a $4,335 spread on the same certified stone. MOH London lists it at $5,931. 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
Colour
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: $5,931 AUD|Low: $1,531 AUD|High: $6,018 AUD|Avg: $3,012 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4$1,596 AUD
Retailer 5$1,851 AUD
Retailer 7$1,851 AUD
Retailer 3$2,100 AUD
Retailer 2$2,573 AUD
Retailer 9$2,667 AUD
Retailer 6$2,946 AUD
Retailer 8$3,754 AUD
MOH London$5,931 AUD

41 data points across 9 retailers

10 retailers$1,596 AUD to $5,931 AUD

A
Cheapest Retailer
-
$1,596 AUD
A
Retailer 2
-
$1,736 AUD
View
Retailer 3
-
$1,851 AUD
View
Price last confirmed 25 days ago
A
Retailer 4
-
$1,851 AUD
View
B+
Retailer 5
-
$2,100 AUD
View
B+
Retailer 6
-
$2,573 AUD
View
B+
Retailer 7
-
$2,946 AUD
View
B
Retailer 8
-
$3,470 AUD
View
B
Retailer 9
-
$3,754 AUD
View
Most Expensive
B
MOH London
LG455032978 · Nov 5
$5,931 AUD
£3,269 GBP
View
9 more retailers have this diamond
Prices start from $1,596 AUDSave up to $4,335 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.

A
1.85ct Princess
$1,596 AUD