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Round|Lab Grown|IGI

0.91ct E SI1 Round Lab Grown Diamond

VG • E/SI1 • IGI LG457056543

Shape and cutting style on the report: Round brilliant

Certificate IGI LG457056543

Diamond specifications and retailer prices

From $196 AUD
$138 USD
As of October 29, 2026
Save $944 AUD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,141 AUD at MOH London · As of October 26, 2026
View at MOH London

About this 0.91ct lab-grown round diamond

This 0.91ct lab-grown round sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG457056543 or 457056543. Listed at 12 retailers as of October 26, 2026, with prices from $196 to $1,141, a $944 spread on the same certified stone. MOH London lists it at $1,141. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.91
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG457056543
Dimensions6.16 × 6.10 × 3.86 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.16 mm6.10 mm0.91 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG457056543
Side View
Table 59.0%Crown 36.8°Girdle: ThickPavilion 40.9°Culet: NoneDepth 62.9%

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: Oct 29
Current: $1,141 AUD|Low: $188 AUD|High: $1,271 AUD|Avg: $640 AUD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 12$196 AUD
Retailer 16$221 AUD
Retailer 17$228 AUD
Retailer 3$419 AUD
Retailer 10$421 AUD
Retailer 15$454 AUD
Retailer 2$457 AUD
Retailer 6$560 AUD
Retailer 8$606 AUD
Retailer 5$624 AUD
Retailer 7$743 AUD
Retailer 14$783 AUD
Retailer 11$827 AUD
Retailer 13$954 AUD
Retailer 4$1,021 AUD
MOH London$1,141 AUD
Retailer 9$1,271 AUD

31 data points across 17 retailers

12 retailers$196 AUD to $1,141 AUD

A
Cheapest Retailer
-
$196 AUD
$138 USD
A
Retailer 2
-
$221 AUD
$155 USD
View
Final sale: no returns
A
Retailer 3
-
$228 AUD
$160 USD
View
B+
Retailer 4
-
$419 AUD
HK$2,300 HKD
View
A
Retailer 5
-
$421 AUD
€282 EUR
View
B+
Retailer 6
-
$454 AUD
$319 USD
View
B+
Retailer 7
-
$457 AUD
£253 GBP
View
B
Retailer 8
-
$783 AUD
$550 USD
View
B
Retailer 9
-
$827 AUD
$581 USD
View
B
Retailer 10
-
$954 AUD
$670 USD
View
B
Retailer 11
-
$1,021 AUD
SGD 969 SGD
View
Most Expensive
B
MOH London
LG457056543 · Oct 26
$1,141 AUD
£631 GBP
View
11 more retailers have this diamond
Prices start from $196 AUDSave up to $944 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
0.91ct Round
$196 AUD