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Round|Lab Grown|IGI

1.01ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG770629305

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770629305

Diamond specifications and retailer prices

From £108 GBP
As of November 5, 2026
Save £651 GBP (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £760 GBP at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.01ct lab-grown round diamond

This 1.01ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770629305 or 770629305. Listed at 17 retailers as of November 4, 2026, with prices from £108 to £760, a £651 spread on the same certified stone. Reve Diamonds lists it at £760. 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

1.01
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770629305
Dimensions6.49 × 6.52 × 3.91 mm
L/W Ratio1.00
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
6.49 mm6.52 mm1.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770629305
Side View
Table 58.0%Crown 33.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.1%

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 5
Current: £228 GBP|Low: £104 GBP|High: £637 GBP|Avg: £250 GBP|+4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8£108 GBP
Retailer 11£122 GBP
Retailer 2£126 GBP
Retailer 10£134 GBP
Retailer 1£228 GBP
Retailer 5£230 GBP
Retailer 3£268 GBP
Retailer 9£301 GBP
Retailer 7£340 GBP
Retailer 6£424 GBP
Retailer 4£628 GBP

44 data points across 11 retailers

17 retailers£108 GBP to £760 GBP

A
Cheapest Retailer
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£108 GBP
A
Retailer 2
-
£122 GBP
View
Final sale: no returns
A
Retailer 3
-
£126 GBP
View
A
Retailer 4
-
£134 GBP
View
A
Retailer 5
-
£152 GBP
View
B+
Retailer 6
-
£189 GBP
View
A
Retailer 7
-
£213 GBP
View
A
Retailer 8
-
£228 GBP
View
A
Retailer 9
-
£230 GBP
View
B+
Retailer 10
-
£268 GBP
View
Retailer 11
-
£301 GBP
View
Price last confirmed 33 days ago
B+
Retailer 12
-
£340 GBP
View
B+
Retailer 13
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£370 GBP
View
B
Retailer 14
-
£424 GBP
View
B
Retailer 15
-
£474 GBP
View
B
Retailer 16
-
£628 GBP
View
Most Expensive
B
Reve Diamonds
77B3F1C9D · Nov 4
£760 GBP
$1,022 USD
View
16 more retailers have this diamond
Prices start from £108 GBPSave up to £651 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
1.01ct Round
£108 GBP