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Cushion|Lab Grown|IGI

1.21ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG828685827

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG828685827

Diamond specifications and retailer prices

From $433 NZD
As of November 6, 2026
Save $1,645 NZD (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,078 NZD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.21ct lab-grown cushion diamond

This 1.21ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG828685827 or 828685827. Listed at 15 retailers as of November 6, 2026, with prices from $433 to $2,078, a $1,645 spread on the same certified stone. Reve Diamonds lists it at $2,078. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828685827
Dimensions6.30 × 6.19 × 4.06 mm
L/W Ratio1.02
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
6.30 mm6.19 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828685827
Side View
Table 62.0%Crown 33.1°Girdle: MED-THKPavilion 39.2°Culet: NoneDepth 65.6%

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 6
Current: $698 NZD|Low: $361 NZD|High: $2,078 NZD|Avg: $1,029 NZD|+4.9%
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 6$402 NZD
Retailer 8$433 NZD
Retailer 1$698 NZD
Retailer 7$707 NZD
Retailer 3$736 NZD
Retailer 9$750 NZD
Retailer 14$787 NZD
Retailer 11$1,019 NZD
Retailer 10$1,091 NZD
Retailer 5$1,173 NZD
Retailer 12$1,191 NZD
Retailer 2$1,209 NZD
Retailer 4$1,441 NZD
Retailer 13$1,954 NZD
Reve Diamonds$2,078 NZD

36 data points across 15 retailers

15 retailers$433 NZD to $2,078 NZD

Retailer 1
-
$402 NZD
Price last confirmed 13 days ago
A
Retailer 2
-
$433 NZD
View
Final sale: no returns
A
Retailer 3
-
$698 NZD
View
A
Retailer 4
-
$707 NZD
View
A
Retailer 5
-
$736 NZD
View
A
Retailer 6
-
$750 NZD
View
A
Retailer 7
-
$787 NZD
View
B+
Retailer 8
-
$1,019 NZD
View
B+
Retailer 9
-
$1,091 NZD
View
Retailer 10
-
$1,173 NZD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
$1,191 NZD
View
B+
Retailer 12
-
$1,209 NZD
View
B
Retailer 13
-
$1,441 NZD
View
B
Retailer 14
-
$1,954 NZD
View
Most Expensive
B
Reve Diamonds
FBC391584 · Nov 6
$2,078 NZD
$1,152 USD
View
14 more retailers have this diamond
Prices start from $433 NZDSave up to $1,645 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 Cushion
$433 NZD