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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 $418 NZD
$235 USD
As of November 1, 2026
Save $1,611 NZD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,029 NZD 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 $418 to $2,029, a $1,611 spread on the same certified stone. Reve Diamonds lists it at $2,029. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $484 NZD|Low: $407 NZD|High: $2,029 NZD|Avg: $1,080 NZD|+1.2%
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 11$418 NZD
Retailer 1$484 NZD
Retailer 7$699 NZD
Retailer 12$714 NZD
Retailer 6$732 NZD
Retailer 9$773 NZD
Retailer 5$987 NZD
Retailer 8$1,041 NZD
Retailer 4$1,182 NZD
Retailer 2$1,397 NZD
Retailer 10$1,635 NZD
Retailer 3$1,862 NZD
Reve Diamonds$2,029 NZD

28 data points across 13 retailers

13 retailers$418 NZD to $2,029 NZD

A
Cheapest Retailer
-
$418 NZD
$235 USD
Final sale: no returns
A
Retailer 2
-
$484 NZD
£215 GBP
View
A
Retailer 3
-
$699 NZD
ZAR 6,352 ZAR
View
B+
Retailer 4
-
$714 NZD
$402 USD
View
B+
Retailer 5
-
$732 NZD
£324 GBP
View
B+
Retailer 6
-
$773 NZD
$435 USD
View
B+
Retailer 7
-
$987 NZD
A$854 AUD
View
B+
Retailer 8
-
$1,041 NZD
$586 USD
View
B
Retailer 9
-
$1,182 NZD
A$1,023 AUD
View
B
Retailer 10
-
$1,397 NZD
$786 USD
View
B
Retailer 11
-
$1,635 NZD
$920 USD
View
B
Retailer 12
-
$1,862 NZD
£825 GBP
View
Most Expensive
B
Reve Diamonds
94D26CB67 · Nov 1
$2,029 NZD
$1,142 USD
View
12 more retailers have this diamond
Prices start from $418 NZDSave up to $1,611 NZD

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
$418 NZD