Round|Lab Grown|IGI

1.21ct H VS1 Round Lab Grown Diamond

EX • H/VS1 • IGI LG754510328

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754510328

Diamond specifications and retailer prices

From $1,085 NZD
As of October 28, 2026
15 retailers carry this diamond
Most expensive: $1,666 NZD at MOH London · As of October 26, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG754510328 or 754510328. Listed at 15 retailers as of October 28, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754510328
Dimensions6.79 × 6.75 × 4.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.79 mm6.75 mm1.21 ctH / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG754510328
Side View
Table 59.0%Crown 36.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: $1,666 NZD|Low: $286 NZD|High: $1,685 NZD|Avg: $940 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 26, 2026
Retailer 9$286 NZD
Retailer 14$336 NZD
Retailer 3$359 NZD
Retailer 12$359 NZD
Retailer 15$608 NZD
Retailer 11$644 NZD
Retailer 13$665 NZD
Retailer 7$709 NZD
Retailer 2$800 NZD
Retailer 5$907 NZD
Retailer 6$1,085 NZD
Retailer 4$1,157 NZD
Retailer 16$1,221 NZD
Retailer 10$1,241 NZD
Retailer 8$1,584 NZD
MOH London$1,666 NZD

26 data points across 16 retailers

15 retailers

Retailer 1
-
$286 NZD
Price last confirmed 9 days ago
Retailer 2
-
$336 NZD
View
Price last confirmed 11 days ago
Retailer 3
-
$359 NZD
View
Price last confirmed 12 days ago
Retailer 4
-
$359 NZD
View
Price last confirmed 10 days ago
Retailer 5
-
$608 NZD
View
Price last confirmed 12 days ago
Retailer 6
-
$644 NZD
View
Price last confirmed 10 days ago
Retailer 7
-
$665 NZD
View
Price last confirmed 8 days ago
Retailer 8
-
$709 NZD
View
Price last confirmed 10 days ago
Retailer 9
-
$800 NZD
View
Price last confirmed 9 days ago
Retailer 10
-
$907 NZD
View
Price last confirmed 14 days ago
B
Retailer 11
-
$1,085 NZD
View
Retailer 12
-
$1,157 NZD
View
Price last confirmed 11 days ago
Retailer 13
-
$1,221 NZD
View
Price last confirmed 9 days ago
Retailer 14
-
$1,241 NZD
View
Price last confirmed 10 days ago
Most Expensive
MOH London
LG754510328 · Oct 26
$1,666 NZD
£738 GBP
View
Price last confirmed 8 days ago
14 more retailers have this diamond
Prices start from $1,085 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.

B
1.21ct Round
$1,085 NZD