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Radiant|Lab Grown|IGI

1.15ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG514249750

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

Certificate IGI LG514249750

Diamond specifications and retailer prices

From $272 AUD
As of November 6, 2026
Save $1,218 AUD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,620 AUD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.15ct lab-grown radiant diamond

This 1.15ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG514249750 or 514249750. Listed at 15 retailers as of November 5, 2026, with a 448% 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

1.15
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.2°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514249750
Dimensions7.33 × 5.11 × 3.57 mm
L/W Ratio1.43
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
7.33 mm5.11 mm1.15 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514249750
Side View
Table 66.5%Crown 47.2°Girdle: Slightly ThickPavilion 35.6°Culet: NoneDepth 69.9%

Caratlytics Score

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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 6
Current: $2,620 AUD|Low: $272 AUD|High: $2,620 AUD|Avg: $860 AUD|+25.0%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 7, 2026
Retailer 4$272 AUD
Retailer 14$316 AUD
Retailer 6$338 AUD
Retailer 17$338 AUD
Retailer 5$415 AUD
Retailer 10$489 AUD
Retailer 9$573 AUD
Retailer 16$594 AUD
Retailer 2$678 AUD
Retailer 12$793 AUD
Retailer 15$802 AUD
Retailer 8$1,071 AUD
Retailer 13$1,092 AUD
Retailer 7$1,201 AUD
Retailer 3$1,450 AUD
Retailer 11$1,490 AUD
Do Amore Diamonds$2,620 AUD

33 data points across 17 retailers

15 retailers$272 AUD to $1,490 AUD

A
Cheapest Retailer
-
$272 AUD
A
Retailer 2
-
$316 AUD
View
A
Retailer 3
-
$338 AUD
View
Retailer 4
-
$338 AUD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$415 AUD
View
A
Retailer 6
-
$489 AUD
View
A
Retailer 7
-
$594 AUD
View
B+
Retailer 8
-
$678 AUD
View
B+
Retailer 9
-
$793 AUD
View
B+
Retailer 10
-
$802 AUD
View
B
Retailer 11
-
$1,092 AUD
View
B
Retailer 12
-
$1,201 AUD
View
B
Retailer 13
-
$1,450 AUD
View
B
Retailer 14
-
$1,490 AUD
View
Most Expensive
Do Amore Diamonds
27-6846E020A · Nov 6
$2,620 AUD
$1,800 USD
View
Price under review
14 more retailers have this diamond
Prices start from $272 AUDSave up to $1,218 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
1.15ct Radiant
$272 AUD