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Round|Lab Grown|IGI

1.02ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG687545962

Shape and cutting style on the report: Round brilliant

Certificate IGI LG687545962

Diamond specifications and retailer prices

From £108 GBP
As of November 5, 2026
Save £648 GBP (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £756 GBP at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.02ct lab-grown round diamond

This 1.02ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG687545962 or 687545962. Listed at 21 retailers as of November 4, 2026, with prices from £108 to £756, a £648 spread on the same certified stone. Reve Diamonds lists it at £756. 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

1.02
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687545962
Dimensions6.51 × 6.46 × 3.96 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
6.51 mm6.46 mm1.02 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687545962
Side View
Table 58.0%Crown 33.8°Girdle: MediumPavilion 41°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
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: £227 GBP|Low: £107 GBP|High: £756 GBP|Avg: £298 GBP|+4.5%
Retailer 1
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Retailer 12
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Retailer 17
Reve Diamonds
November 6, 2026
Retailer 8£108 GBP
Retailer 16£120 GBP
Retailer 17£125 GBP
Retailer 3£133 GBP
Retailer 5£133 GBP
Retailer 1£227 GBP
Retailer 13£238 GBP
Retailer 4£247 GBP
Retailer 10£258 GBP
Retailer 14£262 GBP
Retailer 2£315 GBP
Retailer 15£356 GBP
Retailer 11£357 GBP
Retailer 6£358 GBP
Retailer 9£429 GBP
Retailer 7£470 GBP
Retailer 12£621 GBP
Reve Diamonds£756 GBP

36 data points across 18 retailers

21 retailers£108 GBP to £756 GBP

A
Cheapest Retailer
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£108 GBP
A
Retailer 2
-
£120 GBP
View
Final sale: no returns
A
Retailer 3
-
£125 GBP
View
Retailer 4
-
£133 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
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£133 GBP
View
A
Retailer 6
-
£206 GBP
View
A
Retailer 7
-
£227 GBP
View
A
Retailer 8
-
£238 GBP
View
B+
Retailer 9
-
£247 GBP
View
A
Retailer 10
-
£258 GBP
View
B+
Retailer 11
-
£262 GBP
View
Retailer 12
-
£301 GBP
View
Price last confirmed 58 days ago
B+
Retailer 13
-
£315 GBP
View
B+
Retailer 14
-
£356 GBP
View
B+
Retailer 15
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£357 GBP
View
B+
Retailer 16
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£358 GBP
View
Retailer 17
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£425 GBP
View
Price last confirmed 46 days ago
B
Retailer 18
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£429 GBP
View
B
Retailer 19
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£470 GBP
View
B
Retailer 20
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£621 GBP
View
Most Expensive
B
Reve Diamonds
FB92DBF6F · Nov 4
£756 GBP
$1,017 USD
View
20 more retailers have this diamond
Prices start from £108 GBPSave up to £648 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
1.02ct Round
£108 GBP