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Radiant|Lab Grown|IGI

0.90ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG818659117

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG818659117

Diamond specifications and retailer prices

From $241 AUD
$169 USD
As of October 30, 2026
Save $1,610 AUD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,851 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 0.9ct lab-grown radiant diamond

This 0.9ct lab-grown radiant sits in the just-under-one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818659117 or 818659117. Listed at 19 retailers as of October 30, 2026, with prices from $241 to $1,851, a $1,610 spread on the same certified stone. Brilliant Earth lists it at $1,851. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.90
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818659117
Dimensions7.02 × 4.67 × 3.26 mm
L/W Ratio1.50
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
7.02 mm4.67 mm0.90 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818659117
Side View
Table 65.0%Crown 43.4°Girdle: Slightly ThickPavilion 36.4°Culet: NoneDepth 69.8%

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 30
Current: $1,851 AUD|Low: $241 AUD|High: $1,851 AUD|Avg: $720 AUD
Brilliant Earth
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
Retailer 18
Retailer 19
November 1, 2026
Retailer 5$241 AUD
Retailer 7$269 AUD
Retailer 18$279 AUD
Retailer 10$299 AUD
Retailer 19$299 AUD
Retailer 13$508 AUD
Retailer 12$532 AUD
Retailer 8$534 AUD
Retailer 14$540 AUD
Retailer 15$748 AUD
Retailer 17$749 AUD
Retailer 4$779 AUD
Retailer 9$828 AUD
Retailer 11$961 AUD
Retailer 3$992 AUD
Retailer 6$1,039 AUD
Retailer 2$1,398 AUD
Retailer 16$1,438 AUD
Brilliant Earth$1,851 AUD

43 data points across 19 retailers

19 retailers$241 AUD to $1,851 AUD

A
Cheapest Retailer
-
$241 AUD
$169 USD
A
Retailer 2
-
$269 AUD
$189 USD
View
Final sale: no returns
A
Retailer 3
-
$279 AUD
$196 USD
View
Retailer 4
-
$299 AUD
$210 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$299 AUD
$210 USD
View
A
Retailer 6
-
$508 AUD
€340 EUR
View
A
Retailer 7
-
$532 AUD
£294 GBP
View
A
Retailer 8
-
$534 AUD
$375 USD
View
A
Retailer 9
-
$540 AUD
ZAR 6,131 ZAR
View
Retailer 10
-
$748 AUD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$749 AUD
$526 USD
View
A
Retailer 12
-
$779 AUD
$547 USD
View
A
Retailer 13
-
$828 AUD
SGD 786 SGD
View
B+
Retailer 14
-
$961 AUD
$675 USD
View
B+
Retailer 15
-
$992 AUD
$697 USD
View
B+
Retailer 16
-
$1,039 AUD
$730 USD
View
B+
Retailer 17
-
$1,398 AUD
£773 GBP
View
B+
Retailer 18
-
$1,438 AUD
$1,010 USD
View
Most Expensive
B
Brilliant Earth
21421289A · Oct 31
$1,851 AUD
$1,300 USD
View
18 more retailers have this diamond
Prices start from $241 AUDSave up to $1,610 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
0.90ct Radiant
$241 AUD