CaratHunter
Plans
Oval|Lab Grown|IGI

11.65ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG575382214

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG575382214

Diamond specifications and retailer prices

From £1,242 GBP
As of November 1, 2026
Save £5,683 GBP (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £6,925 GBP at Adiamor · As of October 31, 2026
View at Adiamor

About this 11.65ct lab-grown oval diamond

This 11.65ct lab-grown oval 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 LG575382214 or 575382214. Listed at 10 retailers as of October 31, 2026, with prices from £1,242 to £6,925, a £5,683 spread on the same certified stone. Adiamor lists it at £6,925. 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

11.65
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG575382214
Dimensions18.28 × 12.84 × 8.07 mm
L/W Ratio1.42
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
18.28 mm12.84 mm11.65 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG575382214
Side View
Table 61.5%Crown 36.1°Girdle: MediumPavilion 41.6°Culet: NoneDepth 62.9%

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 1
Current: £6,925 GBP|Low: £1,242 GBP|High: £6,925 GBP|Avg: £3,351 GBP
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2£1,242 GBP
Retailer 11£1,493 GBP
Retailer 7£1,672 GBP
Retailer 3£1,786 GBP
Retailer 9£2,426 GBP
Retailer 6£2,601 GBP
Retailer 12£2,619 GBP
Retailer 4£3,376 GBP
Retailer 5£4,187 GBP
Retailer 10£5,166 GBP
Retailer 8£6,441 GBP
Adiamor£6,925 GBP

39 data points across 12 retailers

10 retailers£1,242 GBP to £6,925 GBP

A
Cheapest Retailer
-
£1,242 GBP
A
Retailer 2
-
£1,493 GBP
$2,000 USD
View
Final sale: no returns
A
Retailer 3
-
£1,672 GBP
$2,240 USD
View
A
Retailer 4
-
£1,786 GBP
HK$18,700 HKD
View
B+
Retailer 5
-
£2,426 GBP
$3,251 USD
View
B+
Retailer 6
-
£2,601 GBP
$3,485 USD
View
B
Retailer 7
-
£4,187 GBP
$5,610 USD
View
B
Retailer 8
-
£5,166 GBP
SGD 9,353 SGD
View
B
Retailer 9
-
£6,441 GBP
$8,630 USD
View
Most Expensive
B
Adiamor
D-61178980 · Oct 31
£6,925 GBP
$9,279 USD
View
9 more retailers have this diamond
Prices start from £1,242 GBPSave up to £5,683 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
11.65ct Oval
£1,242 GBP