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Round|Lab Grown|IGI

1.23ct E VVS2 Round Lab Grown Diamond

EX • E/VVS2 • IGI LG686501315

Shape and cutting style on the report: Round brilliant

Certificate IGI LG686501315

Diamond specifications and retailer prices

From £133 GBP
$178 USD
As of October 29, 2026
Save £707 GBP (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £839 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG686501315 or 686501315. Listed at 22 retailers as of October 29, 2026, with prices from £133 to £839, a £707 spread on the same certified stone. Reve Diamonds lists it at £839. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG686501315
Dimensions6.86 × 6.90 × 4.30 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
6.86 mm6.90 mm1.23 ctE / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG686501315
Side View
Table 56.0%Crown 34.8°Girdle: MediumPavilion 41.3°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: Oct 29
Current: £296 GBP|Low: £128 GBP|High: £839 GBP|Avg: £363 GBP|+6.5%
Retailer 1
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Retailer 19
Reve Diamonds
October 31, 2026
Retailer 6£133 GBP
Retailer 9£149 GBP
Retailer 18£154 GBP
Retailer 2£165 GBP
Retailer 8£165 GBP
Retailer 15£224 GBP
Retailer 14£274 GBP
Retailer 4£279 GBP
Retailer 16£284 GBP
Retailer 1£296 GBP
Retailer 5£327 GBP
Retailer 12£373 GBP
Retailer 13£391 GBP
Retailer 17£403 GBP
Retailer 10£407 GBP
Retailer 7£531 GBP
Retailer 11£537 GBP
Retailer 3£649 GBP
Retailer 19£776 GBP
Reve Diamonds£839 GBP

44 data points across 20 retailers

22 retailers£133 GBP to £839 GBP

A
Cheapest Retailer
-
£133 GBP
$178 USD
A
Retailer 2
-
£149 GBP
$199 USD
View
Final sale: no returns
A
Retailer 3
-
£154 GBP
$207 USD
View
A
Retailer 4
-
£165 GBP
$221 USD
View
A
Retailer 5
-
£165 GBP
$221 USD
View
B+
Retailer 6
-
£224 GBP
$300 USD
View
A
Retailer 7
-
£274 GBP
€350 EUR
View
Retailer 8
-
£279 GBP
View
Price last confirmed 16 days ago
A
Retailer 9
-
£284 GBP
ZAR 6,138 ZAR
View
A
Retailer 10
-
£296 GBP
View
B+
Retailer 11
-
£313 GBP
$419 USD
View
B+
Retailer 12
-
£327 GBP
$438 USD
View
B+
Retailer 13
-
£373 GBP
A$768 AUD
View
B+
Retailer 14
-
£391 GBP
$524 USD
View
B+
Retailer 15
-
£403 GBP
A$831 AUD
View
B+
Retailer 16
-
£407 GBP
$545 USD
View
B
Retailer 17
-
£531 GBP
$711 USD
View
B
Retailer 18
-
£549 GBP
$735 USD
View
B
Retailer 19
-
£571 GBP
$766 USD
View
Retailer 20
-
£649 GBP
$870 USD
View
Price last confirmed 15 days ago
B
Retailer 21
-
£776 GBP
View
Most Expensive
B
Reve Diamonds
5E50A3588 · Oct 30
£839 GBP
$1,125 USD
View
21 more retailers have this diamond
Prices start from £133 GBPSave up to £707 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
1.23ct Round
£133 GBP