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Round|Lab Grown|IGI

1.00ct E SI2 Round Lab Grown Diamond

VG • E/SI2 • IGI LG689560584

Shape and cutting style on the report: Round brilliant

Certificate IGI LG689560584

Diamond specifications and retailer prices

From £113 GBP
$150 USD
As of October 29, 2026
Save £542 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £654 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG689560584 or 689560584. Listed at 18 retailers as of October 26, 2026, with prices from £113 to £654, a £542 spread on the same certified stone. MOH London lists it at £654. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689560584
Dimensions6.45 × 6.50 × 3.88 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
6.45 mm6.50 mm1.00 ctE / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689560584
Side View
Table 58.0%Crown 35°Girdle: THN-MEDPavilion 39.9°Culet: NoneDepth 59.9%

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: Oct 29
Current: £654 GBP|Low: £89 GBP|High: £656 GBP|Avg: £291 GBP|+0.9%
MOH London
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 15
October 29, 2026
Retailer 4£113 GBP
Retailer 3£126 GBP
Retailer 9£131 GBP
Retailer 12£140 GBP
Retailer 14£140 GBP
Retailer 2£242 GBP
Retailer 7£247 GBP
Retailer 8£252 GBP
Retailer 13£257 GBP
Retailer 11£322 GBP
Retailer 10£336 GBP
Retailer 15£375 GBP
Retailer 5£449 GBP
Retailer 6£556 GBP
MOH London£654 GBP

42 data points across 15 retailers

18 retailers£113 GBP to £654 GBP

Retailer 1
-
£112 GBP
$149 USD
Price last confirmed 37 days ago
A
Retailer 2
-
£113 GBP
$150 USD
View
A
Retailer 3
-
£126 GBP
$168 USD
View
Final sale: no returns
A
Retailer 4
-
£131 GBP
$174 USD
View
Retailer 5
-
£137 GBP
$182 USD
View
Price last confirmed 37 days ago
B+
Retailer 6
-
£140 GBP
$186 USD
View
B+
Retailer 7
-
£140 GBP
$186 USD
View
B+
Retailer 8
-
£242 GBP
View
B+
Retailer 9
-
£247 GBP
$329 USD
View
B+
Retailer 10
-
£252 GBP
€319 EUR
View
B+
Retailer 11
-
£257 GBP
$342 USD
View
B
Retailer 12
-
£322 GBP
$429 USD
View
B
Retailer 13
-
£336 GBP
A$688 AUD
View
B
Retailer 14
-
£375 GBP
$500 USD
View
Retailer 15
-
£445 GBP
$593 USD
View
Price last confirmed 39 days ago
B
Retailer 16
-
£449 GBP
$598 USD
View
B
Retailer 17
-
£556 GBP
$740 USD
View
Most Expensive
B
MOH London
LG689560584 · Oct 26
£654 GBP
View
17 more retailers have this diamond
Prices start from £113 GBPSave up to £542 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
1.00ct Round
£113 GBP