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Cushion|Lab Grown|IGI

1.21ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG817695911

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

Certificate IGI LG817695911

Diamond specifications and retailer prices

From $433 NZD
As of November 6, 2026
Save $1,739 NZD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,172 NZD at Flawless Fine Jewelry · As of November 6, 2026
View at Flawless Fine Jewelry

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 LG817695911 or 817695911. Listed at 16 retailers as of November 6, 2026, with prices from $433 to $2,172, a $1,739 spread on the same certified stone. Flawless Fine Jewelry lists it at $2,172. 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 angle36.3°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817695911
Dimensions6.14 × 6.13 × 4.10 mm
L/W Ratio1.00
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
6.14 mm6.13 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817695911
Side View
Table 63.0%Crown 36.3°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 66.8%

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 6
Current: $2,172 NZD|Low: $399 NZD|High: $2,172 NZD|Avg: $1,035 NZD|+5.3%
Flawless Fine Jewelry
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
November 6, 2026
Retailer 8$402 NZD
Retailer 3$433 NZD
Retailer 2$698 NZD
Retailer 9$707 NZD
Retailer 4$736 NZD
Retailer 10$750 NZD
Retailer 14$787 NZD
Retailer 15$998 NZD
Retailer 12$1,019 NZD
Retailer 11$1,091 NZD
Retailer 7$1,173 NZD
Retailer 13$1,191 NZD
Retailer 16$1,209 NZD
Retailer 5$1,441 NZD
Retailer 6$1,889 NZD
Flawless Fine Jewelry$2,172 NZD

41 data points across 16 retailers

16 retailers$433 NZD to $2,172 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
-
$998 NZD
View
B+
Retailer 9
-
$1,019 NZD
View
B+
Retailer 10
-
$1,091 NZD
View
Retailer 11
-
$1,173 NZD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$1,191 NZD
View
B+
Retailer 13
-
$1,209 NZD
View
B+
Retailer 14
-
$1,441 NZD
View
Retailer 15
-
$1,889 NZD
View
Price last confirmed 9 days ago
Most Expensive
B
Flawless Fine Jewelry
5A5E17ACD · Nov 6
$2,172 NZD
£948 GBP
View
15 more retailers have this diamond
Prices start from $433 NZDSave up to $1,739 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