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Round|Lab Grown|IGI

10.86ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG705533354

Shape and cutting style on the report: Round brilliant

Certificate IGI LG705533354

Diamond specifications and retailer prices

From £1,385 GBP
$1,856 USD
As of October 29, 2026
Save £8,854 GBP (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £10,240 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 10.86ct lab-grown round diamond

This 10.86ct 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 LG705533354 or 705533354. Listed at 18 retailers as of October 29, 2026, with prices from £1,385 to £10,240, a £8,854 spread on the same certified stone. Brilliant Earth lists it at £10,240. 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

10.86
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG705533354
Dimensions14.35 × 14.26 × 8.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.35 mm14.26 mm10.86 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG705533354
Side View
Table 57.0%Crown 33°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £10,240 GBP|Low: £1,330 GBP|High: £10,561 GBP|Avg: £2,920 GBP|-3.0%
Brilliant Earth
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
October 31, 2026
Retailer 3£1,385 GBP
Retailer 10£1,437 GBP
Retailer 2£1,478 GBP
Retailer 7£1,531 GBP
Retailer 12£1,731 GBP
Retailer 6£1,853 GBP
Retailer 5£1,974 GBP
Retailer 9£2,163 GBP
Retailer 13£2,297 GBP
Retailer 14£2,703 GBP
Retailer 11£2,816 GBP
Retailer 8£2,870 GBP
Retailer 4£5,365 GBP
Brilliant Earth£10,240 GBP

40 data points across 14 retailers

18 retailers£1,385 GBP to £10,240 GBP

A
Cheapest Retailer
-
£1,385 GBP
$1,856 USD
A
Retailer 2
-
£1,437 GBP
$1,925 USD
View
A
Retailer 3
-
£1,478 GBP
$1,981 USD
View
Final sale: no returns
A
Retailer 4
-
£1,531 GBP
$2,052 USD
View
Retailer 5
-
£1,607 GBP
$2,153 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
£1,731 GBP
$2,320 USD
View
A
Retailer 7
-
£1,853 GBP
HK$19,400 HKD
View
A
Retailer 8
-
£1,974 GBP
$2,645 USD
View
A
Retailer 9
-
£2,163 GBP
View
B+
Retailer 10
-
£2,297 GBP
$3,078 USD
View
B+
Retailer 11
-
£2,703 GBP
$3,622 USD
View
B+
Retailer 12
-
£2,816 GBP
€3,593 EUR
View
B+
Retailer 13
-
£2,870 GBP
$3,846 USD
View
B
Retailer 14
-
£4,611 GBP
$6,178 USD
View
B
Retailer 15
-
£5,365 GBP
SGD 9,714 SGD
View
B
Retailer 16
-
£5,631 GBP
$7,545 USD
View
B
Retailer 17
-
£6,039 GBP
$8,092 USD
View
Most Expensive
B
Brilliant Earth
16412520A · Oct 29
£10,240 GBP
$13,720 USD
View
17 more retailers have this diamond
Prices start from £1,385 GBPSave up to £8,854 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
10.86ct Round
£1,385 GBP