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Heart|Lab Grown|IGI

1.21ct F VS1 Heart Lab Grown Diamond

VG • F/VS1 • IGI LG840639927

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840639927

Diamond specifications and retailer prices

From €210 EUR
$235 USD
As of November 1, 2026
Save €808 EUR (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,018 EUR at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.21ct lab-grown heart diamond

This 1.21ct lab-grown heart sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG840639927 or 840639927. Listed at 13 retailers as of November 1, 2026, with prices from €210 to €1,018, a €808 spread on the same certified stone. Reve Diamonds lists it at €1,018. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840639927
Dimensions6.38 × 7.41 × 4.50 mm
L/W Ratio1.16
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
6.38 mm7.41 mm1.21 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840639927
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°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: €950 EUR|Low: €204 EUR|High: €1,018 EUR|Avg: €542 EUR|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
November 2, 2026
Retailer 12€210 EUR
Retailer 6€243 EUR
Retailer 9€351 EUR
Retailer 2€358 EUR
Retailer 8€367 EUR
Retailer 10€388 EUR
Retailer 7€495 EUR
Retailer 5€528 EUR
Retailer 4€593 EUR
Retailer 3€701 EUR
Retailer 11€820 EUR
Retailer 1€950 EUR
Reve Diamonds€1,018 EUR

28 data points across 13 retailers

13 retailers€210 EUR to €1,018 EUR

A
Cheapest Retailer
-
€210 EUR
$235 USD
Final sale: no returns
A
Retailer 2
-
€243 EUR
£215 GBP
View
A
Retailer 3
-
€351 EUR
ZAR 6,352 ZAR
View
B+
Retailer 4
-
€358 EUR
$402 USD
View
B+
Retailer 5
-
€367 EUR
£324 GBP
View
B+
Retailer 6
-
€388 EUR
$435 USD
View
B+
Retailer 7
-
€495 EUR
A$854 AUD
View
B+
Retailer 8
-
€528 EUR
$592 USD
View
B
Retailer 9
-
€593 EUR
A$1,023 AUD
View
B
Retailer 10
-
€701 EUR
$786 USD
View
B
Retailer 11
-
€820 EUR
$920 USD
View
B
Retailer 12
-
€950 EUR
£839 GBP
View
Most Expensive
B
Reve Diamonds
94D26CB67 · Nov 1
€1,018 EUR
$1,142 USD
View
12 more retailers have this diamond
Prices start from €210 EURSave up to €808 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 Heart
€210 EUR