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Radiant|Lab Grown|IGI

1.21ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG754594892

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

Certificate IGI LG754594892

Diamond specifications and retailer prices

From $316 AUD
As of November 4, 2026
Save $2,713 AUD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $3,028 AUD at Do Amore Diamonds · As of November 5, 2026
View at Do Amore Diamonds

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG754594892 or 754594892. Listed at 25 retailers as of November 4, 2026, with prices from $316 to $3,028, a $2,713 spread on the same certified stone. Do Amore Diamonds lists it at $3,028. 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

1.21
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594892
Dimensions7.73 × 5.26 × 3.45 mm
L/W Ratio1.47
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
7.73 mm5.26 mm1.21 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594892
Side View
Table 62.0%Crown 39.9°Girdle: Slightly ThickPavilion 32.4°Culet: NoneDepth 65.6%

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: Nov 4
Current: $3,028 AUD|Low: $316 AUD|High: $3,200 AUD|Avg: $1,297 AUD|-5.4%
Do Amore Diamonds
Retailer 2
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Retailer 22
November 6, 2026
Retailer 20$316 AUD
Retailer 17$367 AUD
Retailer 14$414 AUD
Retailer 13$441 AUD
Retailer 19$603 AUD
Retailer 4$611 AUD
Retailer 6$721 AUD
Retailer 9$789 AUD
Retailer 2$811 AUD
Retailer 16$849 AUD
Retailer 7$950 AUD
Retailer 11$1,111 AUD
Retailer 22$1,263 AUD
Retailer 21$1,390 AUD
Retailer 8$1,633 AUD
Retailer 18$1,727 AUD
Retailer 15$1,736 AUD
Retailer 5$1,751 AUD
Retailer 3$1,800 AUD
Retailer 10$2,514 AUD
Retailer 12$2,636 AUD
Do Amore Diamonds$3,028 AUD

31 data points across 22 retailers

25 retailers$316 AUD to $3,028 AUD

A
Cheapest Retailer
-
$316 AUD
A
Retailer 2
-
$367 AUD
View
Final sale: no returns
Retailer 3
-
$387 AUD
View
Price last confirmed 40 days ago
Retailer 4
-
$414 AUD
View
Price last confirmed 27 days ago
A
Retailer 5
-
$441 AUD
View
A
Retailer 6
-
$603 AUD
View
A
Retailer 7
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$611 AUD
View
A
Retailer 8
-
$721 AUD
View
A
Retailer 9
-
$756 AUD
View
A
Retailer 10
-
$789 AUD
View
A
Retailer 11
-
$811 AUD
View
A
Retailer 12
-
$849 AUD
View
B+
Retailer 13
-
$950 AUD
View
Retailer 14
-
$1,111 AUD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
$1,263 AUD
View
B+
Retailer 16
-
$1,390 AUD
View
Retailer 17
-
$1,468 AUD
View
Price last confirmed 27 days ago
B
Retailer 18
-
$1,633 AUD
View
B+
Retailer 19
-
$1,727 AUD
View
Retailer 20
-
$1,736 AUD
View
Price last confirmed 29 days ago
B
Retailer 21
-
$1,751 AUD
View
B
Retailer 22
-
$1,800 AUD
View
B
Retailer 23
-
$2,514 AUD
View
Retailer 24
-
$2,636 AUD
View
Price last confirmed 19 days ago
Most Expensive
B
Do Amore Diamonds
27-B15119328 · Nov 5
$3,028 AUD
$2,120 USD
View
24 more retailers have this diamond
Prices start from $316 AUDSave up to $2,713 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
1.21ct Radiant
$316 AUD