CaratHunter
Plans
Marquise|Lab Grown|IGI

1.20ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG823635201

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG823635201

Diamond specifications and retailer prices

From $509 NZD
As of November 2, 2026
Save $2,101 NZD (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $4,089 NZD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.2ct lab-grown marquise diamond

This 1.2ct 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 LG823635201 or 823635201. Listed at 23 retailers as of November 2, 2026, with a 413% 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

1.20
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823635201
Dimensions11.15 × 5.69 × 3.44 mm
L/W Ratio1.96
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
11.15 mm5.69 mm1.20 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823635201
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 60.5%

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 2
Current: $1,101 NZD|Low: $487 NZD|High: $3,026 NZD|Avg: $1,468 NZD|-7.9%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 4, 2026
Retailer 5$509 NZD
Retailer 13$567 NZD
Retailer 3$589 NZD
Retailer 9$630 NZD
Retailer 15$630 NZD
Retailer 20$704 NZD
Retailer 18$863 NZD
Retailer 19$907 NZD
Retailer 21$1,030 NZD
Retailer 16$1,087 NZD
Retailer 1$1,101 NZD
Retailer 11$1,372 NZD
Retailer 12$1,546 NZD
Retailer 2$1,937 NZD
Retailer 7$2,026 NZD
Retailer 8$2,026 NZD
Retailer 10$2,113 NZD
Retailer 6$2,241 NZD
Retailer 17$2,524 NZD
Retailer 14$2,610 NZD
Retailer 22$2,615 NZD
Retailer 4$3,013 NZD

41 data points across 22 retailers

23 retailers$509 NZD to $2,610 NZD

A
Cheapest Retailer
-
$509 NZD
A
Retailer 2
-
$567 NZD
View
Final sale: no returns
A
Retailer 3
-
$589 NZD
View
Retailer 4
-
$630 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$630 NZD
View
A
Retailer 6
-
$704 NZD
View
A
Retailer 7
-
$863 NZD
View
A
Retailer 8
-
$907 NZD
View
Retailer 9
-
$1,030 NZD
View
Price last confirmed 11 days ago
A
Retailer 10
-
$1,087 NZD
View
A
Retailer 11
-
$1,101 NZD
View
B+
Retailer 12
-
$1,372 NZD
View
B+
Retailer 13
-
$1,546 NZD
View
B+
Retailer 14
-
$1,937 NZD
View
B+
Retailer 15
-
$2,026 NZD
View
B+
Retailer 16
-
$2,026 NZD
View
B+
Retailer 17
-
$2,113 NZD
View
B
Retailer 18
-
$2,241 NZD
View
B+
Retailer 19
-
$2,524 NZD
View
B
Retailer 20
-
$2,610 NZD
View
Retailer 21
-
$2,615 NZD
View
Price last confirmed 8 days ago
Retailer 22
-
$3,013 NZD
View
Price last confirmed 28 days ago
Most Expensive
Queensmith
LG823635201 · Oct 27
$4,089 NZD
£1,810 GBP
View
Price last confirmed 9 days ago
22 more retailers have this diamond
Prices start from $509 NZDSave up to $2,101 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
1.20ct Marquise
$509 NZD