CaratHunter
Plans
Radiant|Lab Grown|IGI

3.09ct I SI1 Radiant Lab Grown Diamond

ID • I/SI1 • IGI LG522239756

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

Certificate IGI LG522239756

Diamond specifications and retailer prices

From $945 AUD
$664 USD
As of October 30, 2026
Save $8,721 AUD (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,065 AUD at Ting Diamond · As of October 31, 2026
View at Ting Diamond

About this 3.09ct lab-grown radiant diamond

This 3.09ct lab-grown radiant sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522239756 or 522239756. Listed at 16 retailers as of October 30, 2026, with a 923% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.09
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522239756
Dimensions9.84 × 7.49 × 4.70 mm
L/W Ratio1.31
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.84 mm7.49 mm3.09 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522239756
Side View
Table 67.0%Crown 44.4°Girdle: STK-THKPavilion 32.3°Culet: NoneDepth 62.8%

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: $1,304 AUD|Low: $907 AUD|High: $13,065 AUD|Avg: $3,484 AUD|-1.3%
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
Ting Diamond
November 1, 2026
Retailer 12$945 AUD
Retailer 16$1,028 AUD
Retailer 3$1,056 AUD
Retailer 2$1,096 AUD
Retailer 13$1,096 AUD
Retailer 1$1,304 AUD
Retailer 9$1,345 AUD
Retailer 5$1,532 AUD
Retailer 4$1,658 AUD
Retailer 15$1,787 AUD
Retailer 11$2,800 AUD
Retailer 14$3,082 AUD
Retailer 6$3,781 AUD
Retailer 10$4,623 AUD
Retailer 8$7,207 AUD
Retailer 7$9,666 AUD
Ting Diamond$13,065 AUD

39 data points across 17 retailers

16 retailers$945 AUD to $9,666 AUD

A
Cheapest Retailer
-
$945 AUD
$664 USD
A
Retailer 2
-
$1,028 AUD
$722 USD
View
A
Retailer 3
-
$1,056 AUD
$742 USD
View
Final sale: no returns
A
Retailer 4
-
$1,096 AUD
$770 USD
View
Retailer 5
-
$1,096 AUD
$770 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$1,304 AUD
£721 GBP
View
A
Retailer 7
-
$1,345 AUD
$945 USD
View
A
Retailer 8
-
$1,532 AUD
$1,076 USD
View
B+
Retailer 9
-
$1,658 AUD
$1,165 USD
View
B+
Retailer 10
-
$1,787 AUD
$1,255 USD
View
B+
Retailer 11
-
$2,800 AUD
$1,967 USD
View
B+
Retailer 12
-
$3,082 AUD
$2,165 USD
View
B+
Retailer 13
-
$3,781 AUD
$2,656 USD
View
B
Retailer 14
-
$4,623 AUD
£2,557 GBP
View
B
Retailer 15
-
$9,666 AUD
$6,790 USD
View
Most Expensive
Ting Diamond
10185574 · Oct 31
$13,065 AUD
HK$71,700 HKD
View
Price under review
15 more retailers have this diamond
Prices start from $945 AUDSave up to $8,721 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
3.09ct Radiant
$945 AUD