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Marquise|Lab Grown|IGI

1.25ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG800680076

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800680076

Diamond specifications and retailer prices

From $888 NZD
As of November 4, 2026
Save $2,848 NZD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,736 NZD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.25ct lab-grown marquise diamond

This 1.25ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800680076 or 800680076. Listed at 15 retailers as of November 4, 2026, with prices from $888 to $3,736, a $2,848 spread on the same certified stone. Brilliant Earth lists it at $3,736. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800680076
Dimensions11.06 × 5.66 × 3.53 mm
L/W Ratio1.95
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
11.06 mm5.66 mm1.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800680076
Side View
Table 60.0%Crown 37°Girdle: MediumPavilion 39.5°Culet: NoneDepth 62.4%

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: $3,736 NZD|Low: $888 NZD|High: $4,892 NZD|Avg: $2,380 NZD|-23.6%
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
November 5, 2026
Retailer 10$888 NZD
Retailer 11$1,089 NZD
Retailer 8$1,372 NZD
Retailer 6$1,409 NZD
Retailer 2$1,509 NZD
Retailer 4$1,551 NZD
Retailer 15$1,734 NZD
Retailer 13$1,761 NZD
Retailer 7$1,893 NZD
Retailer 14$2,551 NZD
Retailer 5$2,731 NZD
Retailer 12$2,953 NZD
Retailer 9$3,001 NZD
Retailer 3$3,307 NZD
Brilliant Earth$3,736 NZD

41 data points across 15 retailers

15 retailers$888 NZD to $3,736 NZD

A
Cheapest Retailer
-
$888 NZD
A
Retailer 2
-
$1,089 NZD
View
A
Retailer 3
-
$1,372 NZD
View
A
Retailer 4
-
$1,409 NZD
View
A
Retailer 5
-
$1,509 NZD
View
Retailer 6
-
$1,551 NZD
View
Price last confirmed 7 days ago
A
Retailer 7
-
$1,734 NZD
View
A
Retailer 8
-
$1,761 NZD
View
B+
Retailer 9
-
$1,893 NZD
View
B+
Retailer 10
-
$2,551 NZD
View
Retailer 11
-
$2,731 NZD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$2,953 NZD
View
B+
Retailer 13
-
$3,001 NZD
View
B
Retailer 14
-
$3,307 NZD
View
Most Expensive
B
Brilliant Earth
21143371A · Nov 4
$3,736 NZD
$2,100 USD
View
14 more retailers have this diamond
Prices start from $888 NZDSave up to $2,848 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
1.25ct Marquise
$888 NZD