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Round|Lab Grown|IGI

9.58ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG778660622

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778660622

Diamond specifications and retailer prices

From £1,007 GBP
$1,352 USD
As of November 3, 2026
Save £4,023 GBP (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £5,030 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 9.58ct lab-grown round diamond

This 9.58ct 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 LG778660622 or 778660622. Listed at 18 retailers as of November 3, 2026, with prices from £1,007 to £5,030, a £4,023 spread on the same certified stone. Brilliant Earth lists it at £5,030. 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

9.58
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778660622
Dimensions13.62 × 13.68 × 8.33 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.62 mm13.68 mm9.58 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778660622
Side View
Table 60.0%Crown 33.1°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: £5,030 GBP|Low: £910 GBP|High: £5,030 GBP|Avg: £2,216 GBP
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
Retailer 15
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Retailer 17
Retailer 18
Retailer 19
November 3, 2026
Retailer 10£937 GBP
Retailer 2£1,007 GBP
Retailer 11£1,048 GBP
Retailer 5£1,086 GBP
Retailer 16£1,240 GBP
Retailer 19£1,297 GBP
Retailer 8£1,455 GBP
Retailer 3£1,516 GBP
Retailer 18£1,628 GBP
Retailer 13£1,641 GBP
Retailer 9£1,722 GBP
Retailer 12£1,890 GBP
Retailer 15£2,024 GBP
Retailer 7£2,037 GBP
Retailer 4£3,496 GBP
Retailer 14£3,555 GBP
Retailer 17£3,597 GBP
Retailer 6£4,035 GBP
Brilliant Earth£5,030 GBP

29 data points across 19 retailers

18 retailers£1,007 GBP to £5,030 GBP

Retailer 1
-
£937 GBP
$1,257 USD
Price last confirmed 7 days ago
A
Retailer 2
-
£1,007 GBP
$1,352 USD
View
Retailer 3
-
£1,086 GBP
$1,458 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
£1,240 GBP
HK$13,000 HKD
View
Retailer 5
-
£1,297 GBP
View
Price last confirmed 7 days ago
Retailer 6
-
£1,455 GBP
$1,953 USD
View
Price last confirmed 7 days ago
Retailer 7
-
£1,516 GBP
View
Price last confirmed 7 days ago
Retailer 8
-
£1,628 GBP
$2,185 USD
View
Price last confirmed 6 days ago
B+
Retailer 9
-
£1,641 GBP
€2,097 EUR
View
Retailer 10
-
£1,722 GBP
$2,311 USD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
£1,890 GBP
$2,536 USD
View
B+
Retailer 12
-
£2,024 GBP
A$4,178 AUD
View
Retailer 13
-
£2,037 GBP
$2,733 USD
View
Price last confirmed 9 days ago
Retailer 14
-
£3,496 GBP
View
Price last confirmed 7 days ago
B
Retailer 15
-
£3,555 GBP
$4,771 USD
View
B
Retailer 16
-
£3,597 GBP
SGD 6,523 SGD
View
Retailer 17
-
£4,035 GBP
$5,415 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
18294262A · Nov 3
£5,030 GBP
$6,750 USD
View
17 more retailers have this diamond
Prices start from £1,007 GBPSave up to £4,023 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
9.58ct Round
£1,007 GBP