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Radiant|Lab Grown|IGI

1.05ct D SI1 Radiant Lab Grown Diamond

GD • D/SI1 • IGI LG681543680

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

Certificate IGI LG681543680

Diamond specifications and retailer prices

From $427 AUD
$300 USD
As of November 1, 2026
Save $2,050 AUD (83%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,477 AUD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG681543680 or 681543680. Listed at 7 retailers as of November 1, 2026, with prices from $427 to $2,477, a $2,050 spread on the same certified stone. Do Amore Diamonds lists it at $2,477. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG681543680
Dimensions7.22 × 5.01 × 3.31 mm
L/W Ratio1.44
Culet sizePointed
Cert comments
Pre-existing laser inscription on girdle. As Grown - No indication of post-growth treatment.. This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process.
Top View
7.22 mm5.01 mm1.05 ctD / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG681543680
Side View
Table 75.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,477 AUD|Low: $427 AUD|High: $2,477 AUD|Avg: $1,085 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$427 AUD
Retailer 4$632 AUD
Retailer 5$705 AUD
Retailer 7$777 AUD
Retailer 3$819 AUD
Retailer 8$1,257 AUD
Retailer 2$1,622 AUD
Do Amore Diamonds$2,477 AUD

13 data points across 8 retailers

7 retailers$427 AUD to $2,477 AUD

B+
Cheapest Retailer
-
$427 AUD
$300 USD
B
Retailer 2
-
$632 AUD
$444 USD
View
B
Retailer 3
-
$705 AUD
$495 USD
View
B
Retailer 4
-
$819 AUD
$575 USD
View
C
Retailer 5
-
$1,262 AUD
£698 GBP
View
C
Retailer 6
-
$1,622 AUD
£897 GBP
View
Most Expensive
C
Do Amore Diamonds
7-1678665 · Nov 1
$2,477 AUD
$1,740 USD
View
6 more retailers have this diamond
Prices start from $427 AUDSave up to $2,050 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.

B+
1.05ct Radiant
$427 AUD