CaratHunter
Plans
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 $187 USD
As of November 6, 2026
Save $837 USD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,800 USD 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
Color
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

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 6
Current: $1,800 USD|Low: $187 USD|High: $1,800 USD|Avg: $591 USD|+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 6, 2026
Retailer 4$187 USD
Retailer 14$217 USD
Retailer 6$232 USD
Retailer 17$232 USD
Retailer 5$285 USD
Retailer 2$336 USD
Retailer 9$394 USD
Retailer 16$408 USD
Retailer 10$467 USD
Retailer 12$545 USD
Retailer 15$551 USD
Retailer 8$736 USD
Retailer 13$750 USD
Retailer 7$825 USD
Retailer 3$996 USD
Retailer 11$1,024 USD
Do Amore Diamonds$1,800 USD

32 data points across 17 retailers

15 retailers$187 USD to $1,024 USD

A
Cheapest Retailer
-
$187 USD
A
Retailer 2
-
$217 USD
View
A
Retailer 3
-
$232 USD
View
Retailer 4
-
$232 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$285 USD
View
A
Retailer 6
-
$336 USD
View
A
Retailer 7
-
$408 USD
View
B+
Retailer 8
-
$467 USD
View
B+
Retailer 9
-
$545 USD
View
B+
Retailer 10
-
$551 USD
View
B
Retailer 11
-
$750 USD
View
B
Retailer 12
-
$825 USD
View
B
Retailer 13
-
$996 USD
View
B
Retailer 14
-
$1,024 USD
View
Most Expensive
Do Amore Diamonds
27-6846E020A · Nov 6
$1,800 USD
View
Price under review
14 more retailers have this diamond
Prices start from $187 USDSave up to $837 USD

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
$187 USD