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Radiant|Lab Grown|IGI

0.91ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG311690150

Shape and cutting style on the report: Radiant brilliant

Certificate IGI LG311690150

Diamond specifications and retailer prices

From $295 AUD
$207 USD
As of October 27, 2026
Save $999 AUD (77%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,294 AUD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 0.91ct lab-grown radiant diamond

This 0.91ct lab-grown radiant sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG311690150 or 311690150. Listed at 5 retailers as of October 27, 2026, with prices from $295 to $1,294, a $999 spread on the same certified stone. NZ Jewellers lists it at $1,294. 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

0.91
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle59°
OriginLab Grown
Grading LabIGI
CertificateIGI LG311690150
Dimensions6.84 × 4.88 × 3.02 mm
L/W Ratio1.40
Culet sizeNone
Top View
6.84 mm4.88 mm0.91 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG311690150
Side View
Table 64.0%Crown 39.5°Girdle: MED-MEDPavilion 59°Culet: NoneDepth 62.0%

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: Oct 27
Current: $1,294 AUD|Low: $289 AUD|High: $1,463 AUD|Avg: $819 AUD|-2.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 4$295 AUD
Retailer 3$342 AUD
Retailer 2$364 AUD
Retailer 6$1,096 AUD
NZ Jewellers$1,294 AUD
Retailer 5$1,456 AUD

18 data points across 6 retailers

5 retailers$295 AUD to $1,294 AUD

A
Cheapest Retailer
-
$295 AUD
$207 USD
A
Retailer 2
-
$342 AUD
$240 USD
View
A
Retailer 3
-
$364 AUD
$256 USD
View
B
Retailer 4
-
$1,096 AUD
$770 USD
View
Most Expensive
B
NZ Jewellers
0be93489-e4d7-4ea8-a19c-7886da319dc8 · Oct 28
$1,294 AUD
$909 USD
View
4 more retailers have this diamond
Prices start from $295 AUDSave up to $999 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 Radiant
$295 AUD