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Princess|Lab Grown|IGI

1.91ct H SI1 Princess Lab Grown Diamond

ID • H/SI1 • IGI LG506100198

Shape and cutting style on the report: Princess cut

Certificate IGI LG506100198

Diamond specifications and retailer prices

From $2,584 AUD
$1,815 USD
As of October 30, 2026
Save $5,977 AUD (70%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,561 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.91ct lab-grown princess diamond

This 1.91ct lab-grown princess sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG506100198 or 506100198. Listed at 12 retailers as of October 30, 2026, with prices from $2,584 to $8,561, a $5,977 spread on the same certified stone. MOH London lists it at $8,561. 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

1.91
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506100198
Dimensions6.97 × 6.89 × 4.81 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.97 mm6.89 mm1.91 ctH / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG506100198
Side View
Table 71.5%Crown 38.9°Girdle: Slightly ThickPavilion 38.6°Culet: NoneDepth 69.8%

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: Oct 30
Current: $8,561 AUD|Low: $2,584 AUD|High: $8,664 AUD|Avg: $4,805 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 5$2,584 AUD
Retailer 6$2,876 AUD
Retailer 8$2,894 AUD
Retailer 12$2,957 AUD
Retailer 4$3,223 AUD
Retailer 9$3,239 AUD
Retailer 11$3,993 AUD
Retailer 7$4,701 AUD
Retailer 2$5,042 AUD
Retailer 10$8,167 AUD
MOH London$8,561 AUD
Retailer 3$8,582 AUD

13 data points across 12 retailers

12 retailers$2,584 AUD to $8,561 AUD

B+
Cheapest Retailer
-
$2,584 AUD
$1,815 USD
B+
Retailer 2
-
$2,812 AUD
$1,975 USD
View
B+
Retailer 3
-
$2,876 AUD
$2,020 USD
View
B+
Retailer 4
-
$2,894 AUD
$2,033 USD
View
Final sale: no returns
Retailer 5
-
$2,998 AUD
$2,106 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$2,998 AUD
$2,106 USD
View
B
Retailer 7
-
$3,239 AUD
$2,275 USD
View
B
Retailer 8
-
$4,701 AUD
$3,302 USD
View
B
Retailer 9
-
$5,042 AUD
$3,542 USD
View
B
Retailer 10
-
$5,619 AUD
$3,947 USD
View
B
Retailer 11
-
$8,167 AUD
$5,737 USD
View
Most Expensive
B
MOH London
LG506100198 · Nov 1
$8,561 AUD
£4,735 GBP
View
11 more retailers have this diamond
Prices start from $2,584 AUDSave up to $5,977 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.

B+
1.91ct Princess
$2,584 AUD