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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 €173 EUR
$192 USD
As of October 29, 2026
Save €1,665 EUR (91%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €1,837 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 €173 to €1,837, a €1,665 spread on the same certified stone. Queensmith lists it at €1,837. 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
Colour
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: €390 EUR|Low: €166 EUR|High: €1,014 EUR|Avg: €410 EUR|+6.4%
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 29, 2026
Retailer 11€173 EUR
Retailer 4€200 EUR
Retailer 2€215 EUR
Retailer 12€289 EUR
Retailer 6€360 EUR
Retailer 5€361 EUR
Retailer 7€368 EUR
Retailer 1€390 EUR
Retailer 3€435 EUR
Retailer 8€523 EUR
Retailer 10€549 EUR
Retailer 9€1,004 EUR

37 data points across 12 retailers

23 retailers€173 EUR to €1,837 EUR

A
Cheapest Retailer
-
€173 EUR
$192 USD
A
Retailer 2
-
€194 EUR
$216 USD
View
Final sale: no returns
A
Retailer 3
-
€200 EUR
$223 USD
View
A
Retailer 4
-
€215 EUR
$239 USD
View
A
Retailer 5
-
€215 EUR
$239 USD
View
A
Retailer 6
-
€242 EUR
HK$2,100 HKD
View
B+
Retailer 7
-
€289 EUR
$322 USD
View
B+
Retailer 8
-
€357 EUR
$397 USD
View
A
Retailer 9
-
€360 EUR
£316 GBP
View
A
Retailer 10
-
€361 EUR
View
A
Retailer 11
-
€368 EUR
ZAR 6,619 ZAR
View
B+
Retailer 12
-
€390 EUR
£341 GBP
View
B+
Retailer 13
-
€435 EUR
$484 USD
View
B+
Retailer 14
-
€523 EUR
A$896 AUD
View
B
Retailer 15
-
€549 EUR
$611 USD
View
B
Retailer 16
-
€689 EUR
$767 USD
View
B
Retailer 17
-
€700 EUR
SGD 1,053 SGD
View
B
Retailer 18
-
€722 EUR
$804 USD
View
B
Retailer 19
-
€738 EUR
$821 USD
View
Retailer 20
-
€943 EUR
$1,050 USD
View
Price last confirmed 39 days ago
B
Retailer 21
-
€1,004 EUR
£880 GBP
View
B
Retailer 22
-
€1,051 EUR
$1,169 USD
View
Most Expensive
B
Queensmith
LG818645105 · Oct 27
€1,837 EUR
£1,610 GBP
View
22 more retailers have this diamond
Prices start from €173 EURSave up to €1,665 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
€173 EUR