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Round|Lab Grown|IGI

0.61ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG683509290

Shape and cutting style on the report: Round brilliant

Certificate IGI LG683509290

Diamond specifications and retailer prices

From £104 GBP
$139 USD
As of November 1, 2026
Save £350 GBP (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £599 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.61ct lab-grown round diamond

This 0.61ct lab-grown round sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG683509290 or 683509290. Listed at 16 retailers as of October 31, 2026, with a 337% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.61
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683509290
Dimensions5.49 × 5.46 × 3.36 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
5.49 mm5.46 mm0.61 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683509290
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.4%

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: £599 GBP|Low: £99 GBP|High: £606 GBP|Avg: £245 GBP
MOH London
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
November 2, 2026
Retailer 11£104 GBP
Retailer 3£116 GBP
Retailer 6£120 GBP
Retailer 13£128 GBP
Retailer 14£128 GBP
Retailer 9£168 GBP
Retailer 12£180 GBP
Retailer 8£201 GBP
Retailer 7£218 GBP
Retailer 2£225 GBP
Retailer 4£355 GBP
Retailer 5£411 GBP
Retailer 10£434 GBP
MOH London£599 GBP

45 data points across 14 retailers

16 retailers£104 GBP to £453 GBP

A
Cheapest Retailer
-
£104 GBP
$139 USD
A
Retailer 2
-
£116 GBP
$155 USD
View
Final sale: no returns
A
Retailer 3
-
£120 GBP
$161 USD
View
A
Retailer 4
-
£128 GBP
$172 USD
View
Retailer 5
-
£128 GBP
$172 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£168 GBP
$225 USD
View
A
Retailer 7
-
£180 GBP
$242 USD
View
A
Retailer 8
-
£201 GBP
$270 USD
View
A
Retailer 9
-
£218 GBP
View
A
Retailer 10
-
£225 GBP
€287 EUR
View
B+
Retailer 11
-
£353 GBP
SGD 641 SGD
View
B+
Retailer 12
-
£355 GBP
$476 USD
View
B+
Retailer 13
-
£411 GBP
$552 USD
View
B+
Retailer 14
-
£434 GBP
$583 USD
View
B+
Retailer 15
-
£453 GBP
$608 USD
View
Most Expensive
MOH London
LG683509290 · Oct 26
£599 GBP
View
Price last confirmed 7 days ago
15 more retailers have this diamond
Prices start from £104 GBPSave up to £350 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
0.61ct Round
£104 GBP