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Heart|Lab Grown|IGI

1.20ct F VS1 Heart Lab Grown Diamond

VG • F/VS1 • IGI LG837622437

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG837622437

Diamond specifications and retailer prices

From $414 NZD
$233 USD
As of November 1, 2026
Save $1,435 NZD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,849 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.2ct lab-grown heart diamond

This 1.2ct 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 LG837622437 or 837622437. Listed at 15 retailers as of October 29, 2026, with prices from $414 to $1,849, a $1,435 spread on the same certified stone. MOH London lists it at $1,849. 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

1.20
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837622437
Dimensions6.42 × 7.53 × 4.24 mm
L/W Ratio1.17
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
6.42 mm7.53 mm1.20 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837622437
Side View
Table 64.0%Crown 36.8°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 56.3%

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: $1,849 NZD|Low: $400 NZD|High: $1,934 NZD|Avg: $981 NZD|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 4$409 NZD
Retailer 10$414 NZD
Retailer 6$694 NZD
Retailer 11$709 NZD
Retailer 5$726 NZD
Retailer 8$762 NZD
Retailer 2$980 NZD
Retailer 7$1,033 NZD
Retailer 3$1,169 NZD
Retailer 12$1,388 NZD
Retailer 9$1,617 NZD
MOH London$1,849 NZD

40 data points across 12 retailers

15 retailers$414 NZD to $1,849 NZD

Retailer 1
-
$316 NZD
$178 USD
Price last confirmed 31 days ago
Retailer 2
-
$375 NZD
$211 USD
View
Price last confirmed 34 days ago
Retailer 3
-
$409 NZD
$230 USD
View
Price last confirmed 30 days ago
A
Retailer 4
-
$414 NZD
$233 USD
View
Final sale: no returns
B+
Retailer 5
-
$694 NZD
ZAR 6,307 ZAR
View
B+
Retailer 6
-
$709 NZD
$399 USD
View
B+
Retailer 7
-
$726 NZD
£321 GBP
View
B+
Retailer 8
-
$762 NZD
$429 USD
View
B+
Retailer 9
-
$980 NZD
A$848 AUD
View
B+
Retailer 10
-
$1,033 NZD
$581 USD
View
B
Retailer 11
-
$1,169 NZD
A$1,012 AUD
View
Retailer 12
-
$1,315 NZD
$740 USD
View
Price last confirmed 32 days ago
B
Retailer 13
-
$1,388 NZD
$781 USD
View
B
Retailer 14
-
$1,617 NZD
$910 USD
View
Most Expensive
B
MOH London
LG837622437 · Oct 29
$1,849 NZD
£819 GBP
View
14 more retailers have this diamond
Prices start from $414 NZDSave up to $1,435 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
1.20ct Heart
$414 NZD