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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 $337 NZD
As of November 6, 2026
Save $1,510 NZD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,247 NZD 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: $3,247 NZD|Low: $337 NZD|High: $3,247 NZD|Avg: $1,066 NZD|+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$337 NZD
Retailer 14$391 NZD
Retailer 6$419 NZD
Retailer 17$419 NZD
Retailer 5$514 NZD
Retailer 10$606 NZD
Retailer 9$711 NZD
Retailer 16$736 NZD
Retailer 2$841 NZD
Retailer 12$983 NZD
Retailer 15$994 NZD
Retailer 8$1,328 NZD
Retailer 13$1,353 NZD
Retailer 7$1,488 NZD
Retailer 3$1,797 NZD
Retailer 11$1,847 NZD
Do Amore Diamonds$3,247 NZD

33 data points across 17 retailers

15 retailers$337 NZD to $1,847 NZD

A
Cheapest Retailer
-
$337 NZD
A
Retailer 2
-
$391 NZD
View
A
Retailer 3
-
$419 NZD
View
Retailer 4
-
$419 NZD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$514 NZD
View
A
Retailer 6
-
$606 NZD
View
A
Retailer 7
-
$736 NZD
View
B+
Retailer 8
-
$841 NZD
View
B+
Retailer 9
-
$983 NZD
View
B+
Retailer 10
-
$994 NZD
View
B
Retailer 11
-
$1,353 NZD
View
B
Retailer 12
-
$1,488 NZD
View
B
Retailer 13
-
$1,797 NZD
View
B
Retailer 14
-
$1,847 NZD
View
Most Expensive
Do Amore Diamonds
27-6846E020A · Nov 6
$3,247 NZD
$1,800 USD
View
Price under review
14 more retailers have this diamond
Prices start from $337 NZDSave up to $1,510 NZD

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
$337 NZD