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Round|Lab Grown|IGI

1.05ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG729569980

Shape and cutting style on the report: Round brilliant

Certificate IGI LG729569980

Diamond specifications and retailer prices

From $319 AUD
$224 USD
As of October 30, 2026
Save $1,386 AUD (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $1,922 AUD at Brilliant Earth · As of October 17, 2026
View at Brilliant Earth

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG729569980 or 729569980. Listed at 24 retailers as of October 30, 2026, with a 435% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729569980
Dimensions6.52 × 6.55 × 4.00 mm
L/W Ratio1.00
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
6.52 mm6.55 mm1.05 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729569980
Side View
Table 56.0%Crown 34.5°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.2%

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 30
Current: $1,922 AUD|Low: $319 AUD|High: $1,922 AUD|Avg: $870 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
October 30, 2026
Retailer 7$319 AUD
Retailer 9$401 AUD
Retailer 17$481 AUD
Retailer 10$598 AUD
Retailer 12$610 AUD
Retailer 2$649 AUD
Retailer 5$695 AUD
Retailer 16$715 AUD
Retailer 15$775 AUD
Retailer 14$860 AUD
Retailer 13$868 AUD
Retailer 8$966 AUD
Retailer 11$1,130 AUD
Retailer 6$1,218 AUD
Retailer 4$1,669 AUD
Retailer 3$1,704 AUD
Brilliant Earth$1,922 AUD

38 data points across 17 retailers

24 retailers$319 AUD to $1,704 AUD

Retailer 1
-
$286 AUD
$201 USD
Price last confirmed 12 days ago
A
Retailer 2
-
$319 AUD
$224 USD
View
Final sale: no returns
Retailer 3
-
$332 AUD
$233 USD
View
Price last confirmed 10 days ago
Retailer 4
-
$354 AUD
$249 USD
View
Price last confirmed 11 days ago
Retailer 5
-
$356 AUD
$250 USD
View
Price last confirmed 13 days ago
Retailer 6
-
$366 AUD
$257 USD
View
Price last confirmed 45 days ago
A
Retailer 7
-
$401 AUD
HK$2,200 HKD
View
A
Retailer 8
-
$481 AUD
$338 USD
View
A
Retailer 9
-
$598 AUD
€400 EUR
View
A
Retailer 10
-
$610 AUD
ZAR 6,921 ZAR
View
A
Retailer 11
-
$649 AUD
£359 GBP
View
A
Retailer 12
-
$695 AUD
$488 USD
View
A
Retailer 13
-
$715 AUD
$502 USD
View
B+
Retailer 14
-
$775 AUD
View
Retailer 15
-
$860 AUD
$604 USD
View
Price last confirmed 8 days ago
B+
Retailer 16
-
$868 AUD
View
B+
Retailer 17
-
$912 AUD
$641 USD
View
B+
Retailer 18
-
$966 AUD
SGD 917 SGD
View
B+
Retailer 19
-
$1,130 AUD
View
Retailer 20
-
$1,142 AUD
$802 USD
View
Price last confirmed 12 days ago
B+
Retailer 21
-
$1,218 AUD
$855 USD
View
B
Retailer 22
-
$1,669 AUD
£923 GBP
View
B
Retailer 23
-
$1,704 AUD
$1,197 USD
View
Most Expensive
Brilliant Earth
16533432A · Oct 17
$1,922 AUD
$1,350 USD
View
Price last confirmed 13 days ago
23 more retailers have this diamond
Prices start from $319 AUDSave up to $1,386 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
1.05ct Round
$319 AUD