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Round|Lab Grown|IGI

11.54ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG581343778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG581343778

Diamond specifications and retailer prices

From £1,302 GBP
$1,745 USD
As of October 26, 2026
Save £7,661 GBP (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £8,963 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 11.54ct lab-grown round diamond

This 11.54ct 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 LG581343778 or 581343778. Listed at 11 retailers as of October 26, 2026, with prices from £1,302 to £8,963, a £7,661 spread on the same certified stone. Do Amore Diamonds lists it at £8,963. 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

11.54
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG581343778
Dimensions14.63 × 14.68 × 8.81 mm
L/W Ratio1.00
Girdle conditionFaceted
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
14.63 mm14.68 mm11.54 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG581343778
Side View
Table 59.0%Crown 33.8°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.1%

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 26
Current: £8,963 GBP|Low: £1,302 GBP|High: £17,194 GBP|Avg: £5,999 GBP|-31.5%
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
October 31, 2026
Retailer 12£1,302 GBP
Retailer 9£1,344 GBP
Retailer 16£2,070 GBP
Retailer 10£2,271 GBP
Retailer 3£2,329 GBP
Retailer 11£2,385 GBP
Retailer 2£2,835 GBP
Retailer 7£3,229 GBP
Retailer 5£3,388 GBP
Retailer 15£3,910 GBP
Retailer 4£4,206 GBP
Retailer 13£5,291 GBP
Retailer 14£7,992 GBP
Do Amore Diamonds£8,963 GBP
Retailer 6£11,807 GBP
Retailer 8£17,194 GBP

11 data points across 16 retailers

11 retailers£1,302 GBP to £8,963 GBP

A
Cheapest Retailer
-
£1,302 GBP
$1,745 USD
A
Retailer 2
-
£1,344 GBP
View
Retailer 3
-
£2,070 GBP
$2,774 USD
View
Price last confirmed 11 days ago
A
Retailer 4
-
£2,271 GBP
View
Retailer 5
-
£2,329 GBP
$3,120 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
£2,385 GBP
$3,195 USD
View
B+
Retailer 7
-
£2,835 GBP
$3,798 USD
View
Retailer 8
-
£3,910 GBP
$5,239 USD
View
Price last confirmed 10 days ago
B
Retailer 9
-
£5,291 GBP
$7,090 USD
View
B
Retailer 10
-
£7,992 GBP
$10,709 USD
View
Most Expensive
B
Do Amore Diamonds
27-148F677EE · Oct 29
£8,963 GBP
$12,010 USD
View
10 more retailers have this diamond
Prices start from £1,302 GBPSave up to £7,661 GBP

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
11.54ct Round
£1,302 GBP