Round|Lab Grown|IGI

1.21ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG811647073

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811647073

Diamond specifications and retailer prices

From €181 EUR
$202 USD
As of November 1, 2026
Save €642 EUR (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,052 EUR at MOH London · As of October 18, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct 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 LG811647073 or 811647073. Listed at 17 retailers as of October 30, 2026, with a 355% 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

1.21
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811647073
Dimensions6.92 × 6.86 × 4.19 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
6.92 mm6.86 mm1.21 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811647073
Side View
Table 56.0%Crown 33°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.7%

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 1
Current: €1,052 EUR|Low: €181 EUR|High: €1,058 EUR|Avg: €533 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 10€181 EUR
Retailer 12€224 EUR
Retailer 4€370 EUR
Retailer 2€386 EUR
Retailer 13€388 EUR
Retailer 7€410 EUR
Retailer 6€470 EUR
Retailer 11€537 EUR
Retailer 8€547 EUR
Retailer 9€576 EUR
Retailer 5€767 EUR
Retailer 3€806 EUR
MOH London€1,052 EUR

27 data points across 13 retailers

17 retailers€181 EUR to €823 EUR

A
Cheapest Retailer
-
€181 EUR
$202 USD
A
Retailer 2
-
€209 EUR
$234 USD
View
A
Retailer 3
-
€224 EUR
$250 USD
View
Retailer 4
-
€224 EUR
$250 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
€370 EUR
$413 USD
View
A
Retailer 6
-
€386 EUR
ZAR 6,971 ZAR
View
A
Retailer 7
-
€388 EUR
$433 USD
View
B+
Retailer 8
-
€410 EUR
View
B+
Retailer 9
-
€470 EUR
$525 USD
View
B+
Retailer 10
-
€537 EUR
$600 USD
View
B+
Retailer 11
-
€547 EUR
A$940 AUD
View
B+
Retailer 12
-
€576 EUR
$643 USD
View
Retailer 13
-
€656 EUR
$733 USD
View
Price last confirmed 46 days ago
B
Retailer 14
-
€719 EUR
$803 USD
View
B
Retailer 15
-
€767 EUR
$857 USD
View
B
Retailer 16
-
€823 EUR
$919 USD
View
Most Expensive
MOH London
LG811647073 · Oct 18
€1,052 EUR
£925 GBP
View
Price last confirmed 15 days ago
16 more retailers have this diamond
Prices start from €181 EURSave up to €642 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
1.21ct Round
€181 EUR