CaratHunter
Plans
Radiant|Lab Grown|IGI

1.21ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG651411202

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

Certificate IGI LG651411202

Diamond specifications and retailer prices

From $285 AUD
$200 USD
As of October 30, 2026
Save $2,897 AUD (91%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $3,182 AUD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant 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 LG651411202 or 651411202. Listed at 25 retailers as of October 27, 2026, with prices from $285 to $3,182, a $2,897 spread on the same certified stone. Queensmith lists it at $3,182. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651411202
Dimensions7.90 × 5.43 × 3.49 mm
L/W Ratio1.45
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
7.90 mm5.43 mm1.21 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651411202
Side View
Table 62.0%Crown 38.1°Girdle: MediumPavilion 35.5°Culet: NoneDepth 64.3%

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: Oct 30
Current: $1,566 AUD|Low: $285 AUD|High: $2,733 AUD|Avg: $1,048 AUD|-7.4%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 1, 2026
Retailer 23$285 AUD
Retailer 10$319 AUD
Retailer 20$332 AUD
Retailer 5$354 AUD
Retailer 11$354 AUD
Retailer 12$413 AUD
Retailer 8$504 AUD
Retailer 14$547 AUD
Retailer 18$671 AUD
Retailer 3$702 AUD
Retailer 17$727 AUD
Retailer 22$860 AUD
Retailer 19$955 AUD
Retailer 4$1,142 AUD
Retailer 2$1,256 AUD
Retailer 15$1,500 AUD
Retailer 9$1,519 AUD
Retailer 13$1,556 AUD
Retailer 1$1,566 AUD
Retailer 7$1,702 AUD
Retailer 21$2,078 AUD
Retailer 16$2,691 AUD
Retailer 6$2,733 AUD

37 data points across 23 retailers

25 retailers$285 AUD to $3,182 AUD

A
Cheapest Retailer
-
$285 AUD
$200 USD
A
Retailer 2
-
$319 AUD
$224 USD
View
Final sale: no returns
A
Retailer 3
-
$332 AUD
$233 USD
View
Retailer 4
-
$354 AUD
$249 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$354 AUD
$249 USD
View
A
Retailer 6
-
$413 AUD
£228 GBP
View
B+
Retailer 7
-
$504 AUD
$354 USD
View
A
Retailer 8
-
$547 AUD
HK$3,000 HKD
View
A
Retailer 9
-
$671 AUD
ZAR 7,614 ZAR
View
A
Retailer 10
-
$702 AUD
$493 USD
View
A
Retailer 11
-
$727 AUD
£402 GBP
View
A
Retailer 12
-
$860 AUD
$604 USD
View
A
Retailer 13
-
$955 AUD
View
B+
Retailer 14
-
$1,142 AUD
$802 USD
View
B+
Retailer 15
-
$1,256 AUD
$882 USD
View
B+
Retailer 16
-
$1,500 AUD
$1,054 USD
View
B+
Retailer 17
-
$1,519 AUD
£840 GBP
View
B+
Retailer 18
-
$1,556 AUD
SGD 1,477 SGD
View
B+
Retailer 19
-
$1,566 AUD
£866 GBP
View
B
Retailer 20
-
$1,702 AUD
$1,195 USD
View
Retailer 21
-
$2,078 AUD
$1,460 USD
View
Price last confirmed 11 days ago
Retailer 22
-
$2,093 AUD
$1,470 USD
View
Price last confirmed 17 days ago
B
Retailer 23
-
$2,691 AUD
$1,890 USD
View
B
Retailer 24
-
$2,733 AUD
$1,920 USD
View
Most Expensive
B
Queensmith
LG651411202 · Oct 27
$3,182 AUD
£1,760 GBP
View
24 more retailers have this diamond
Prices start from $285 AUDSave up to $2,897 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
$285 AUD