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Round|Lab Grown|IGI

1.21ct E VS1 Round Lab Grown Diamond

EX • E/VS1 • IGI LG818645105

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818645105

Diamond specifications and retailer prices

From €172 EUR
$192 USD
As of October 29, 2026
Save €1,658 EUR (91%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €1,830 EUR at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818645105 or 818645105. Listed at 23 retailers as of October 27, 2026, with prices from €172 to €1,830, a €1,658 spread on the same certified stone. Queensmith lists it at €1,830. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818645105
Dimensions6.88 × 6.94 × 4.08 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.88 mm6.94 mm1.21 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818645105
Side View
Table 62.0%Crown 33°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 59.0%

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: Oct 29
Current: €358 EUR|Low: €166 EUR|High: €1,011 EUR|Avg: €395 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 11€172 EUR
Retailer 4€200 EUR
Retailer 2€214 EUR
Retailer 12€288 EUR
Retailer 1€358 EUR
Retailer 6€360 EUR
Retailer 7€367 EUR
Retailer 5€387 EUR
Retailer 3€433 EUR
Retailer 8€521 EUR
Retailer 10€547 EUR
Retailer 9€1,000 EUR

38 data points across 12 retailers

23 retailers€172 EUR to €1,830 EUR

A
Cheapest Retailer
-
€172 EUR
$192 USD
A
Retailer 2
-
€193 EUR
$216 USD
View
Final sale: no returns
A
Retailer 3
-
€200 EUR
$223 USD
View
A
Retailer 4
-
€214 EUR
$239 USD
View
A
Retailer 5
-
€214 EUR
$239 USD
View
A
Retailer 6
-
€241 EUR
HK$2,100 HKD
View
B+
Retailer 7
-
€288 EUR
$322 USD
View
B+
Retailer 8
-
€355 EUR
$397 USD
View
A
Retailer 9
-
€358 EUR
£315 GBP
View
A
Retailer 10
-
€360 EUR
View
A
Retailer 11
-
€367 EUR
ZAR 6,619 ZAR
View
B+
Retailer 12
-
€387 EUR
£341 GBP
View
B+
Retailer 13
-
€433 EUR
$484 USD
View
B+
Retailer 14
-
€521 EUR
A$896 AUD
View
B
Retailer 15
-
€547 EUR
$611 USD
View
B
Retailer 16
-
€687 EUR
$767 USD
View
B
Retailer 17
-
€697 EUR
SGD 1,053 SGD
View
B
Retailer 18
-
€720 EUR
$804 USD
View
B
Retailer 19
-
€735 EUR
$821 USD
View
Retailer 20
-
€940 EUR
$1,050 USD
View
Price last confirmed 41 days ago
B
Retailer 21
-
€1,000 EUR
£880 GBP
View
B
Retailer 22
-
€1,047 EUR
$1,169 USD
View
Most Expensive
B
Queensmith
LG818645105 · Oct 27
€1,830 EUR
£1,610 GBP
View
22 more retailers have this diamond
Prices start from €172 EURSave up to €1,658 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
€172 EUR