Round|Lab Grown|IGI

15.11ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG577395292

Shape and cutting style on the report: Round brilliant

Certificate IGI LG577395292

Diamond specifications and retailer prices

From $1,760 USD
£1,385 GBP
As of October 30, 2026
Save $13,313 USD (88%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $15,073 USD at Adiamor · As of October 31, 2026
View at Adiamor

About this 15.11ct lab-grown round diamond

This 15.11ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG577395292 or 577395292. Listed at 12 retailers as of October 30, 2026, with prices from $1,760 to $15,073, a $13,313 spread on the same certified stone. Adiamor lists it at $15,073. 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

15.11
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG577395292
Dimensions15.99 × 16.07 × 9.70 mm
L/W Ratio1.01
Girdle conditionFaceted
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
15.99 mm16.07 mm15.11 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG577395292
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.5%

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: $15,073 USD|Low: $1,760 USD|High: $21,150 USD|Avg: $6,031 USD
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 8$1,760 USD
Retailer 9$1,883 USD
Retailer 6$2,049 USD
Retailer 3$2,184 USD
Retailer 10$2,350 USD
Retailer 13$2,573 USD
Retailer 12$2,843 USD
Retailer 2$2,992 USD
Retailer 11$3,487 USD
Retailer 7$3,587 USD
Retailer 4$4,094 USD
Adiamor$15,073 USD
Retailer 5$21,150 USD

4 data points across 13 retailers

12 retailers$1,760 USD to $15,073 USD

A
Cheapest Retailer
-
$1,760 USD
£1,385 GBP
A
Retailer 2
-
$1,883 USD
View
A
Retailer 3
-
$2,049 USD
View
A
Retailer 4
-
$2,184 USD
View
A
Retailer 5
-
$2,350 USD
View
A
Retailer 6
-
$2,573 USD
HK$20,100 HKD
View
A
Retailer 7
-
$2,843 USD
View
A
Retailer 8
-
$2,992 USD
£2,356 GBP
View
A
Retailer 9
-
$3,487 USD
€3,321 EUR
View
A
Retailer 10
-
$3,587 USD
View
B+
Retailer 11
-
$4,094 USD
View
Most Expensive
B
Adiamor
D-82826842 · Oct 31
$15,073 USD
View
11 more retailers have this diamond
Prices start from $1,760 USDSave up to $13,313 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
15.11ct Round
$1,760 USD