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Radiant|Lab Grown|IGI

1.67ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG636400270

Certificate IGI LG636400270

Diamond specifications and retailer prices

From $894 AUD
$628 USD
As of October 28, 2026
Save $3,647 AUD (80%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,541 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.67ct lab-grown radiant diamond

This 1.67ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG636400270 or 636400270. Listed at 7 retailers as of October 28, 2026, with prices from $894 to $4,541, a $3,647 spread on the same certified stone. Brilliant Earth lists it at $4,541. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.67
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG636400270
Dimensions6.01 × 6.01 × 3.99 mm
L/W Ratio1.00
Top View
6.01 mm6.01 mm1.67 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636400270
Side View
Table 64.0%CrownGirdle: MediumPavilionCulet: NoneDepth 66.4%

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 28
Current: $4,541 AUD|Low: $638 AUD|High: $4,683 AUD|Avg: $2,149 AUD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 23, 2026
Retailer 8$638 AUD
Retailer 5$894 AUD
Retailer 2$1,161 AUD
Retailer 4$1,618 AUD
Retailer 7$1,897 AUD
Retailer 6$2,181 AUD
Retailer 10$2,492 AUD
Retailer 9$2,748 AUD
Retailer 3$3,359 AUD
Brilliant Earth$4,541 AUD

15 data points across 10 retailers

7 retailers$894 AUD to $4,541 AUD

A
Cheapest Retailer
-
$894 AUD
$628 USD
A
Retailer 2
-
$1,161 AUD
€777 EUR
View
B+
Retailer 3
-
$1,618 AUD
$1,137 USD
View
Retailer 4
-
$3,359 AUD
$2,360 USD
View
Price last confirmed 11 days ago
Retailer 5
-
$3,942 AUD
$2,770 USD
View
Price last confirmed 87 days ago
Retailer 6
-
$4,498 AUD
$3,160 USD
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
21311935A · Oct 29
$4,541 AUD
$3,190 USD
View
6 more retailers have this diamond
Prices start from $894 AUDSave up to $3,647 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
1.67ct Radiant
$894 AUD