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Marquise|Lab Grown|IGI

1.22ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG639487558

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG639487558

Diamond specifications and retailer prices

From $680 NZD
As of November 4, 2026
Save $2,551 NZD (79%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $3,753 NZD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.22ct lab-grown marquise diamond

This 1.22ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG639487558 or 639487558. Listed at 30 retailers as of October 30, 2026, with a 375% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639487558
Dimensions10.94 × 5.62 × 3.47 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
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
10.94 mm5.62 mm1.22 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639487558
Side View
Table 61.0%Crown 32.7°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.7%

Caratlytics Score

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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 4
Current: $3,753 NZD|Low: $487 NZD|High: $3,844 NZD|Avg: $2,138 NZD|+0.5%
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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 5, 2026
Retailer 17$487 NZD
Retailer 22$680 NZD
Retailer 20$865 NZD
Retailer 16$984 NZD
Retailer 19$987 NZD
Retailer 3$1,067 NZD
Retailer 13$1,338 NZD
Retailer 15$1,386 NZD
Retailer 2$1,443 NZD
Retailer 11$1,517 NZD
Retailer 9$1,697 NZD
Retailer 7$1,718 NZD
Retailer 21$1,852 NZD
Retailer 12$1,859 NZD
Retailer 24$2,209 NZD
Retailer 23$2,423 NZD
Retailer 8$2,498 NZD
Retailer 5$2,533 NZD
Retailer 14$2,713 NZD
Retailer 6$2,884 NZD
Retailer 4$2,926 NZD
Retailer 18$3,010 NZD
Retailer 10$3,230 NZD
Brilliant Earth$3,753 NZD

29 data points across 24 retailers

30 retailers$680 NZD to $3,230 NZD

Retailer 1
-
$487 NZD
Price last confirmed 28 days ago
A
Retailer 2
-
$680 NZD
View
Final sale: no returns
Retailer 3
-
$825 NZD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$865 NZD
View
Retailer 5
-
$923 NZD
View
Price last confirmed 37 days ago
Retailer 6
-
$984 NZD
View
Price last confirmed 28 days ago
Retailer 7
-
$984 NZD
View
Price last confirmed 26 days ago
A
Retailer 8
-
$987 NZD
View
Retailer 9
-
$1,009 NZD
View
Price last confirmed 37 days ago
A
Retailer 10
-
$1,067 NZD
View
A
Retailer 11
-
$1,338 NZD
View
B+
Retailer 12
-
$1,386 NZD
View
B+
Retailer 13
-
$1,443 NZD
View
Retailer 14
-
$1,517 NZD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
$1,697 NZD
View
B+
Retailer 16
-
$1,718 NZD
View
B+
Retailer 17
-
$1,852 NZD
View
B+
Retailer 18
-
$1,859 NZD
View
B+
Retailer 19
-
$2,209 NZD
View
B+
Retailer 20
-
$2,423 NZD
View
B
Retailer 21
-
$2,498 NZD
View
B
Retailer 22
-
$2,533 NZD
View
Retailer 23
-
$2,713 NZD
View
Price last confirmed 8 days ago
B
Retailer 24
-
$2,884 NZD
View
B+
Retailer 25
-
$2,926 NZD
View
B
Retailer 26
-
$3,010 NZD
View
Retailer 27
-
$3,163 NZD
View
Price last confirmed 26 days ago
B
Retailer 28
-
$3,230 NZD
View
Retailer 29
-
$3,287 NZD
View
Price last confirmed 36 days ago
Most Expensive
Brilliant Earth
10876475A · Oct 26
$3,753 NZD
$2,110 USD
View
Price last confirmed 9 days ago
29 more retailers have this diamond
Prices start from $680 NZDSave up to $2,551 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
1.22ct Marquise
$680 NZD