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Round|Lab Grown|IGI

1.05ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG685512055

Shape and cutting style on the report: Round brilliant

Certificate IGI LG685512055

Diamond specifications and retailer prices

From $211 AUD
As of November 5, 2026
Save $1,257 AUD (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,469 AUD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685512055 or 685512055. Listed at 23 retailers as of November 4, 2026, with prices from $211 to $1,469, a $1,257 spread on the same certified stone. Reve Diamonds lists it at $1,469. 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

1.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685512055
Dimensions6.53 × 6.49 × 3.99 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
6.53 mm6.49 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685512055
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.3%

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: Nov 5
Current: $700 AUD|Low: $210 AUD|High: $1,469 AUD|Avg: $589 AUD
Retailer 1
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
Reve Diamonds
November 5, 2026
Retailer 5$211 AUD
Retailer 14$236 AUD
Retailer 8$243 AUD
Retailer 3$263 AUD
Retailer 16$263 AUD
Retailer 9$449 AUD
Retailer 2$484 AUD
Retailer 12$514 AUD
Retailer 13$586 AUD
Retailer 15$613 AUD
Retailer 7$694 AUD
Retailer 1$700 AUD
Retailer 6$843 AUD
Retailer 11$891 AUD
Retailer 4$921 AUD
Retailer 10$1,221 AUD
Reve Diamonds$1,469 AUD

44 data points across 17 retailers

23 retailers$211 AUD to $1,469 AUD

Retailer 1
-
$210 AUD
Price last confirmed 45 days ago
A
Retailer 2
-
$211 AUD
View
A
Retailer 3
-
$236 AUD
View
Final sale: no returns
Retailer 4
-
$257 AUD
View
Price last confirmed 45 days ago
Retailer 5
-
$263 AUD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$263 AUD
View
A
Retailer 7
-
$416 AUD
View
A
Retailer 8
-
$449 AUD
View
B+
Retailer 9
-
$484 AUD
View
B+
Retailer 10
-
$514 AUD
View
B+
Retailer 11
-
$571 AUD
View
Retailer 12
-
$586 AUD
View
Price last confirmed 12 days ago
B+
Retailer 13
-
$613 AUD
View
B+
Retailer 14
-
$694 AUD
View
Retailer 15
-
$700 AUD
View
Price last confirmed 21 days ago
B+
Retailer 16
-
$700 AUD
View
B+
Retailer 17
-
$709 AUD
View
Retailer 18
-
$837 AUD
View
Price last confirmed 46 days ago
B
Retailer 19
-
$843 AUD
View
B
Retailer 20
-
$891 AUD
View
B
Retailer 21
-
$921 AUD
View
B
Retailer 22
-
$1,221 AUD
View
Most Expensive
B
Reve Diamonds
C22A37157 · Nov 4
$1,469 AUD
$1,028 USD
View
22 more retailers have this diamond
Prices start from $211 AUDSave up to $1,257 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
$211 AUD