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Round|Lab Grown|IGI

1.23ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG749572328

Shape and cutting style on the report: Round brilliant

Certificate IGI LG749572328

Diamond specifications and retailer prices

From €154 EUR
As of November 3, 2026
Save €829 EUR (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €1,601 EUR at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG749572328 or 749572328. Listed at 23 retailers as of November 3, 2026, with a 540% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749572328
Dimensions6.91 × 6.98 × 4.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.91 mm6.98 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749572328
Side View
Table 58.0%Crown 34.2°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: €646 EUR|Low: €147 EUR|High: €983 EUR|Avg: €418 EUR|+49.8%
Retailer 1
Retailer 2
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Retailer 21
November 4, 2026
Retailer 21€154 EUR
Retailer 20€171 EUR
Retailer 13€178 EUR
Retailer 5€190 EUR
Retailer 6€190 EUR
Retailer 2€216 EUR
Retailer 8€257 EUR
Retailer 15€322 EUR
Retailer 18€328 EUR
Retailer 12€335 EUR
Retailer 3€353 EUR
Retailer 16€354 EUR
Retailer 7€412 EUR
Retailer 17€463 EUR
Retailer 10€612 EUR
Retailer 14€624 EUR
Retailer 11€628 EUR
Retailer 1€646 EUR
Retailer 4€659 EUR
Retailer 19€889 EUR
Retailer 9€983 EUR

32 data points across 21 retailers

23 retailers€154 EUR to €983 EUR

A
Cheapest Retailer
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€154 EUR
A
Retailer 2
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€171 EUR
View
Final sale: no returns
A
Retailer 3
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€178 EUR
View
Retailer 4
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€190 EUR
View
Price last confirmed 11 days ago
A
Retailer 5
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€190 EUR
View
A
Retailer 6
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€216 EUR
View
B+
Retailer 7
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€257 EUR
View
A
Retailer 8
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€322 EUR
View
A
Retailer 9
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€328 EUR
View
A
Retailer 10
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€335 EUR
View
A
Retailer 11
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€353 EUR
View
A
Retailer 12
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€354 EUR
View
B+
Retailer 13
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€412 EUR
View
B+
Retailer 14
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€463 EUR
View
B+
Retailer 15
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€483 EUR
View
B+
Retailer 16
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€612 EUR
View
B
Retailer 17
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€624 EUR
View
B
Retailer 18
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€628 EUR
View
B
Retailer 19
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€646 EUR
View
B
Retailer 20
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€659 EUR
View
B
Retailer 21
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€889 EUR
View
B
Retailer 22
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€983 EUR
View
Most Expensive
Queensmith
LG749572328 · Oct 27
€1,601 EUR
£1,420 GBP
View
Price last confirmed 8 days ago
22 more retailers have this diamond
Prices start from €154 EURSave up to €829 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
€154 EUR