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Round|Lab Grown|IGI

1.23ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG818675571

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818675571

Diamond specifications and retailer prices

From €168 EUR
$188 USD
As of October 29, 2026
Save €865 EUR (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,033 EUR at Reve Diamonds · As of November 1, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818675571 or 818675571. Listed at 17 retailers as of October 29, 2026, with prices from €168 to €1,033, a €865 spread on the same certified stone. Reve Diamonds lists it at €1,033. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818675571
Dimensions6.89 × 6.94 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.89 mm6.94 mm1.23 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818675571
Side View
Table 60.0%Crown 33.2°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 61.2%

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: €974 EUR|Low: €168 EUR|High: €1,081 EUR|Avg: €487 EUR|-9.1%
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
Retailer 16
Reve Diamonds
November 1, 2026
Retailer 7€168 EUR
Retailer 5€188 EUR
Retailer 2€195 EUR
Retailer 4€209 EUR
Retailer 14€209 EUR
Retailer 11€358 EUR
Retailer 6€365 EUR
Retailer 15€374 EUR
Retailer 9€382 EUR
Retailer 3€430 EUR
Retailer 10€470 EUR
Retailer 12€509 EUR
Retailer 16€670 EUR
Retailer 13€672 EUR
Retailer 8€718 EUR
Retailer 1€974 EUR
Reve Diamonds€1,033 EUR

22 data points across 17 retailers

17 retailers€168 EUR to €1,033 EUR

A
Cheapest Retailer
-
€168 EUR
$188 USD
A
Retailer 2
-
€188 EUR
$210 USD
View
Final sale: no returns
A
Retailer 3
-
€195 EUR
$218 USD
View
A
Retailer 4
-
€209 EUR
$233 USD
View
A
Retailer 5
-
€209 EUR
$233 USD
View
A
Retailer 6
-
€358 EUR
ZAR 6,457 ZAR
View
A
Retailer 7
-
€365 EUR
$408 USD
View
A
Retailer 8
-
€374 EUR
$418 USD
View
A
Retailer 9
-
€382 EUR
£336 GBP
View
B+
Retailer 10
-
€430 EUR
$480 USD
View
B+
Retailer 11
-
€470 EUR
$525 USD
View
B+
Retailer 12
-
€509 EUR
A$874 AUD
View
B+
Retailer 13
-
€670 EUR
$748 USD
View
B
Retailer 14
-
€672 EUR
$751 USD
View
B
Retailer 15
-
€718 EUR
$802 USD
View
B
Retailer 16
-
€974 EUR
£857 GBP
View
Most Expensive
B
Reve Diamonds
D603540B5 · Nov 1
€1,033 EUR
$1,154 USD
View
16 more retailers have this diamond
Prices start from €168 EURSave up to €865 EUR

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
€168 EUR