CaratHunter
Plans
Princess|Lab Grown|IGI

1.73ct K SI1 Princess Lab Grown Diamond

ID • K/SI1 • IGI LG445036860

Shape and cutting style on the report: Princess cut

Certificate IGI LG445036860

Diamond specifications and retailer prices

From $1,046 USD
As of November 6, 2026
Save $3,070 USD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,116 USD at MOH London · As of November 3, 2026
View at MOH London

About this 1.73ct lab-grown princess diamond

This 1.73ct 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 LG445036860 or 445036860. Listed at 9 retailers as of November 3, 2026, with prices from $1,046 to $4,116, a $3,070 spread on the same certified stone. MOH London lists it at $4,116. 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

1.73
Carat
K
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle45.7°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445036860
Dimensions6.51 × 6.45 × 4.65 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
undefined
Top View
6.51 mm6.45 mm1.73 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445036860
Side View
Table 71.5%Crown 45.7°Girdle: STK-THKPavilion 38.7°Culet: NoneDepth 72.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,116 USD|Low: $1,046 USD|High: $4,172 USD|Avg: $2,339 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3$1,046 USD
Retailer 2$1,390 USD
Retailer 6$1,763 USD
Retailer 4$1,935 USD
Retailer 5$2,537 USD
MOH London$4,116 USD

13 data points across 6 retailers

9 retailers$1,046 USD to $4,116 USD

A
Cheapest Retailer
-
$1,046 USD
A
Retailer 2
-
$1,138 USD
View
A
Retailer 3
-
$1,214 USD
View
Retailer 4
-
$1,214 USD
View
Price last confirmed 25 days ago
B+
Retailer 5
-
$1,390 USD
View
B+
Retailer 6
-
$1,935 USD
View
B
Retailer 7
-
$2,275 USD
View
B
Retailer 8
-
$2,537 USD
View
Most Expensive
B
MOH London
LG445036860 · Nov 3
$4,116 USD
£3,241 GBP
View
8 more retailers have this diamond
Prices start from $1,046 USDSave up to $3,070 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
1.73ct Princess
$1,046 USD