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Radiant|Lab Grown|IGI

12.57ct G VS1 Radiant Lab Grown Diamond

EX • G/VS1 • IGI LG722555615

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

Certificate IGI LG722555615

Diamond specifications and retailer prices

From $5,923 AUD
$4,151 USD
As of November 1, 2026
Save $18,139 AUD (75%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $39,568 AUD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 12.57ct lab-grown radiant diamond

This 12.57ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG722555615 or 722555615. Listed at 20 retailers as of October 31, 2026, with a 306% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

12.57
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.8°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG722555615
Dimensions17.13 × 11.02 × 7.06 mm
L/W Ratio1.55
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.13 mm11.02 mm12.57 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG722555615
Side View
Table 62.0%Crown 50.8°Girdle: Slightly ThickPavilion 36.1°Culet: NoneDepth 64.1%

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 1
Current: $39,568 AUD|Low: $5,923 AUD|High: $39,568 AUD|Avg: $11,662 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 4$5,923 AUD
Retailer 7$6,136 AUD
Retailer 13$6,136 AUD
Retailer 3$6,542 AUD
Retailer 10$8,297 AUD
Retailer 11$8,750 AUD
Retailer 2$8,829 AUD
Retailer 9$9,154 AUD
Retailer 5$9,503 AUD
Retailer 8$10,483 AUD
Retailer 6$12,754 AUD
Retailer 12$15,523 AUD
Do Amore Diamonds$39,568 AUD

42 data points across 13 retailers

20 retailers$5,923 AUD to $24,062 AUD

Retailer 1
-
$5,078 AUD
$3,559 USD
Price last confirmed 31 days ago
Retailer 2
-
$5,755 AUD
$4,033 USD
View
Price last confirmed 36 days ago
A
Retailer 3
-
$5,923 AUD
$4,151 USD
View
Final sale: no returns
B+
Retailer 4
-
$6,136 AUD
$4,300 USD
View
Retailer 5
-
$6,136 AUD
$4,300 USD
View
Price last confirmed 30 days ago
B+
Retailer 6
-
$6,542 AUD
$4,585 USD
View
B+
Retailer 7
-
$8,297 AUD
$5,815 USD
View
Retailer 8
-
$8,463 AUD
$5,931 USD
View
Price last confirmed 32 days ago
B+
Retailer 9
-
$8,750 AUD
$6,132 USD
View
B+
Retailer 10
-
$8,829 AUD
£4,872 GBP
View
Retailer 11
-
$9,154 AUD
$6,415 USD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
$9,503 AUD
£5,244 GBP
View
B+
Retailer 13
-
$10,483 AUD
ZAR 118,682 ZAR
View
B
Retailer 14
-
$10,735 AUD
$7,523 USD
View
B
Retailer 15
-
$12,754 AUD
View
B
Retailer 16
-
$15,523 AUD
$10,879 USD
View
B
Retailer 17
-
$16,890 AUD
$11,837 USD
View
B
Retailer 18
-
$24,062 AUD
$16,863 USD
View
Retailer 19
-
$36,386 AUD
$25,500 USD
View
Price under review
Most Expensive
Do Amore Diamonds
23-722555615 · Nov 2
$39,568 AUD
$27,730 USD
View
Price under review
19 more retailers have this diamond
Prices start from $5,923 AUDSave up to $18,139 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
12.57ct Radiant
$5,923 AUD