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Round|Lab Grown|IGI

0.90ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG598342701

Shape and cutting style on the report: Round brilliant

Certificate IGI LG598342701

Diamond specifications and retailer prices

From £154 GBP
$207 USD
As of November 1, 2026
Save £754 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £908 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 0.9ct lab-grown round diamond

This 0.9ct lab-grown round sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG598342701 or 598342701. Listed at 18 retailers as of November 1, 2026, with prices from £154 to £908, a £754 spread on the same certified stone. Reve Diamonds lists it at £908. 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

0.90
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598342701
Dimensions6.16 × 6.20 × 3.82 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.16 mm6.20 mm0.90 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598342701
Side View
Table 57.0%Crown 34.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.8%

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: Nov 1
Current: £353 GBP|Low: £149 GBP|High: £778 GBP|Avg: £362 GBP|+6.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 6£154 GBP
Retailer 11£180 GBP
Retailer 3£192 GBP
Retailer 9£192 GBP
Retailer 2£214 GBP
Retailer 8£324 GBP
Retailer 4£331 GBP
Retailer 1£353 GBP
Retailer 5£364 GBP
Retailer 7£379 GBP
Retailer 10£617 GBP
Retailer 13£619 GBP
Retailer 12£773 GBP

41 data points across 13 retailers

18 retailers£154 GBP to £908 GBP

A
Cheapest Retailer
-
£154 GBP
$207 USD
A
Retailer 2
-
£172 GBP
$231 USD
View
Final sale: no returns
A
Retailer 3
-
£180 GBP
$241 USD
View
Retailer 4
-
£192 GBP
$257 USD
View
Price last confirmed 21 days ago
A
Retailer 5
-
£192 GBP
$257 USD
View
A
Retailer 6
-
£214 GBP
$287 USD
View
A
Retailer 7
-
£220 GBP
HK$2,300 HKD
View
A
Retailer 8
-
£324 GBP
€413 EUR
View
B+
Retailer 9
-
£331 GBP
$444 USD
View
B+
Retailer 10
-
£353 GBP
View
B+
Retailer 11
-
£364 GBP
$488 USD
View
B+
Retailer 12
-
£379 GBP
View
B+
Retailer 13
-
£521 GBP
SGD 943 SGD
View
B
Retailer 14
-
£617 GBP
$827 USD
View
B
Retailer 15
-
£619 GBP
$829 USD
View
B
Retailer 16
-
£657 GBP
$880 USD
View
B
Retailer 17
-
£773 GBP
View
Most Expensive
B
Reve Diamonds
41E2B1ACD · Nov 1
£908 GBP
$1,217 USD
View
17 more retailers have this diamond
Prices start from £154 GBPSave up to £754 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
0.90ct Round
£154 GBP