CaratHunter
Plans
Round|Lab Grown|IGI

11.56ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG577382882

Shape and cutting style on the report: Round brilliant

Certificate IGI LG577382882

Diamond specifications and retailer prices

From $1,396 USD
£1,099 GBP
As of November 2, 2026
Save $5,391 USD (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,787 USD at Adiamor · As of November 2, 2026
View at Adiamor

About this 11.56ct lab-grown round diamond

This 11.56ct lab-grown round sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG577382882 or 577382882. Listed at 14 retailers as of November 2, 2026, with prices from $1,396 to $6,787, a $5,391 spread on the same certified stone. Adiamor lists it at $6,787. 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

11.56
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG577382882
Dimensions14.50 × 14.61 × 8.92 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
14.50 mm14.61 mm11.56 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG577382882
Side View
Table 56.5%Crown 34.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.3%

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 2
Current: $6,787 USD|Low: $1,396 USD|High: $23,490 USD|Avg: $5,513 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
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 2$1,396 USD
Retailer 13$1,498 USD
Retailer 11$1,630 USD
Retailer 3$1,738 USD
Retailer 14$1,910 USD
Retailer 4$2,048 USD
Retailer 16$2,303 USD
Retailer 9$2,445 USD
Retailer 10$2,739 USD
Retailer 15$2,800 USD
Retailer 12$3,155 USD
Retailer 6$3,258 USD
Retailer 5$5,495 USD
Adiamor$6,787 USD
Retailer 8$17,260 USD
Retailer 7$23,490 USD

6 data points across 16 retailers

14 retailers$1,396 USD to $6,787 USD

A
Cheapest Retailer
-
$1,396 USD
£1,099 GBP
A
Retailer 2
-
$1,498 USD
View
A
Retailer 3
-
$1,630 USD
View
A
Retailer 4
-
$1,738 USD
View
A
Retailer 5
-
$1,910 USD
View
A
Retailer 6
-
$2,048 USD
HK$16,000 HKD
View
A
Retailer 7
-
$2,303 USD
View
A
Retailer 8
-
$2,445 USD
£1,925 GBP
View
B+
Retailer 9
-
$2,739 USD
View
A
Retailer 10
-
$2,800 USD
€2,667 EUR
View
B+
Retailer 11
-
$3,155 USD
View
B+
Retailer 12
-
$3,258 USD
View
B
Retailer 13
-
$5,495 USD
View
Most Expensive
B
Adiamor
D-82834942 · Nov 2
$6,787 USD
View
13 more retailers have this diamond
Prices start from $1,396 USDSave up to $5,391 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
11.56ct Round
$1,396 USD