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Marquise|Lab Grown|IGI

1.21ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG841674554

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841674554

Diamond specifications and retailer prices

From $358 NZD
As of November 4, 2026
Save $1,930 NZD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,288 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG841674554 or 841674554. Listed at 19 retailers as of October 30, 2026, with prices from $358 to $2,288, a $1,930 spread on the same certified stone. Brilliant Earth lists it at $2,288. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841674554
Dimensions10.90 × 5.59 × 3.45 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.90 mm5.59 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841674554
Side View
Table 61.0%Crown 30.8°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.7%

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 4
Current: $2,288 NZD|Low: $358 NZD|High: $2,288 NZD|Avg: $1,021 NZD
Brilliant Earth
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
Retailer 17
Retailer 18
November 5, 2026
Retailer 3$358 NZD
Retailer 8$399 NZD
Retailer 6$444 NZD
Retailer 9$444 NZD
Retailer 12$591 NZD
Retailer 7$600 NZD
Retailer 15$765 NZD
Retailer 18$772 NZD
Retailer 2$805 NZD
Retailer 5$827 NZD
Retailer 13$896 NZD
Retailer 16$1,073 NZD
Retailer 14$1,080 NZD
Retailer 17$1,394 NZD
Retailer 4$1,519 NZD
Retailer 11$2,067 NZD
Retailer 10$2,125 NZD
Brilliant Earth$2,288 NZD

32 data points across 18 retailers

19 retailers$358 NZD to $2,288 NZD

A
Cheapest Retailer
-
$358 NZD
A
Retailer 2
-
$399 NZD
View
Final sale: no returns
A
Retailer 3
-
$444 NZD
View
Retailer 4
-
$444 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$591 NZD
View
B+
Retailer 6
-
$600 NZD
View
A
Retailer 7
-
$765 NZD
View
Retailer 8
-
$772 NZD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$805 NZD
View
A
Retailer 10
-
$827 NZD
View
A
Retailer 11
-
$896 NZD
View
B+
Retailer 12
-
$1,073 NZD
View
B+
Retailer 13
-
$1,080 NZD
View
Retailer 14
-
$1,348 NZD
View
Price last confirmed 29 days ago
Retailer 15
-
$1,394 NZD
View
Price last confirmed 9 days ago
B
Retailer 16
-
$1,519 NZD
View
B
Retailer 17
-
$2,067 NZD
View
B
Retailer 18
-
$2,125 NZD
View
Most Expensive
B
Brilliant Earth
21789863A · Oct 30
$2,288 NZD
$1,290 USD
View
18 more retailers have this diamond
Prices start from $358 NZDSave up to $1,930 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 Marquise
$358 NZD