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Round|Lab Grown|IGI

1.01ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG689560583

Shape and cutting style on the report: Round brilliant

Certificate IGI LG689560583

Diamond specifications and retailer prices

From £107 GBP
As of November 5, 2026
Save £646 GBP (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £753 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 LG689560583 or 689560583. Listed at 22 retailers as of November 4, 2026, with prices from £107 to £753, a £646 spread on the same certified stone. Reve Diamonds lists it at £753. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689560583
Dimensions6.36 × 6.40 × 4.00 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
6.36 mm6.40 mm1.01 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689560583
Side View
Table 57.0%Crown 36.1°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 62.6%

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: £224 GBP|Low: £106 GBP|High: £753 GBP|Avg: £286 GBP|+5.6%
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
Retailer 14
Retailer 15
Reve Diamonds
November 6, 2026
Retailer 5£107 GBP
Retailer 3£119 GBP
Retailer 12£124 GBP
Retailer 2£132 GBP
Retailer 14£132 GBP
Retailer 7£205 GBP
Retailer 1£224 GBP
Retailer 15£246 GBP
Retailer 11£260 GBP
Retailer 13£314 GBP
Retailer 8£357 GBP
Retailer 6£425 GBP
Retailer 10£449 GBP
Retailer 4£466 GBP
Retailer 9£617 GBP
Reve Diamonds£753 GBP

46 data points across 16 retailers

22 retailers£107 GBP to £753 GBP

Retailer 1
-
£106 GBP
Price last confirmed 45 days ago
A
Retailer 2
-
£107 GBP
View
A
Retailer 3
-
£119 GBP
View
Final sale: no returns
A
Retailer 4
-
£124 GBP
View
Retailer 5
-
£129 GBP
View
Price last confirmed 45 days ago
Retailer 6
-
£132 GBP
View
Price last confirmed 12 days ago
A
Retailer 7
-
£132 GBP
View
A
Retailer 8
-
£205 GBP
View
A
Retailer 9
-
£224 GBP
View
B+
Retailer 10
-
£246 GBP
View
B+
Retailer 11
-
£260 GBP
View
Retailer 12
-
£301 GBP
View
Price last confirmed 33 days ago
B+
Retailer 13
-
£314 GBP
View
B+
Retailer 14
-
£354 GBP
View
B+
Retailer 15
-
£357 GBP
View
B+
Retailer 16
-
£357 GBP
View
Retailer 17
-
£422 GBP
View
Price last confirmed 46 days ago
B
Retailer 18
-
£425 GBP
View
B
Retailer 19
-
£449 GBP
View
B
Retailer 20
-
£466 GBP
View
B
Retailer 21
-
£617 GBP
View
Most Expensive
B
Reve Diamonds
0F5F799EE · Nov 4
£753 GBP
$1,013 USD
View
21 more retailers have this diamond
Prices start from £107 GBPSave up to £646 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
£107 GBP