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Heart|Lab Grown|IGI

1.21ct D VVS1 Heart Lab Grown Diamond

VG • D/VVS1 • IGI LG831687348

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831687348

Diamond specifications and retailer prices

From €209 EUR
$234 USD
As of November 1, 2026
Save €1,071 EUR (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,280 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.21ct lab-grown heart diamond

This 1.21ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG831687348 or 831687348. Listed at 11 retailers as of October 31, 2026, with prices from €209 to €1,280, a €1,071 spread on the same certified stone. Brilliant Earth lists it at €1,280. 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
D
Color
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831687348
Dimensions6.80 × 7.53 × 4.19 mm
L/W Ratio1.11
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
6.80 mm7.53 mm1.21 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831687348
Side View
Table 60.0%Crown 39.6°Girdle: MED-THKPavilion 36°Culet: NoneDepth 55.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €425 EUR|Low: €209 EUR|High: €932 EUR|Avg: €536 EUR|+2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 2€209 EUR
Retailer 5€390 EUR
Retailer 10€399 EUR
Retailer 3€401 EUR
Retailer 1€425 EUR
Retailer 7€522 EUR
Retailer 6€568 EUR
Retailer 8€749 EUR
Retailer 9€794 EUR
Retailer 4€931 EUR

9 data points across 10 retailers

11 retailers€209 EUR to €1,280 EUR

A
Cheapest Retailer
-
€209 EUR
$234 USD
Final sale: no returns
A
Retailer 2
-
€390 EUR
View
B+
Retailer 3
-
€399 EUR
$446 USD
View
B+
Retailer 4
-
€401 EUR
ZAR 7,238 ZAR
View
B+
Retailer 5
-
€425 EUR
£374 GBP
View
B+
Retailer 6
-
€522 EUR
$583 USD
View
B+
Retailer 7
-
€568 EUR
A$976 AUD
View
B
Retailer 8
-
€749 EUR
$837 USD
View
B
Retailer 9
-
€794 EUR
$887 USD
View
B
Retailer 10
-
€931 EUR
£819 GBP
View
Most Expensive
B
Brilliant Earth
22262720A · Oct 31
€1,280 EUR
$1,430 USD
View
10 more retailers have this diamond
Prices start from €209 EURSave up to €1,071 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
€209 EUR