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Marquise|Lab Grown|IGI

1.25ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG801689971

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG801689971

Diamond specifications and retailer prices

From $823 AUD
As of November 4, 2026
Save $1,863 AUD (69%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,717 AUD at Novita Diamonds · As of October 5, 2026
View at Novita Diamonds

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 LG801689971 or 801689971. Listed at 14 retailers as of November 4, 2026, with a 226% 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

1.25
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801689971
Dimensions10.97 × 5.63 × 3.54 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
10.97 mm5.63 mm1.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801689971
Side View
Table 59.0%Crown 35.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.9%

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: $2,717 AUD|Low: $823 AUD|High: $3,628 AUD|Avg: $1,889 AUD|+2.3%
Novita Diamonds
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
November 5, 2026
Retailer 9$823 AUD
Retailer 11$874 AUD
Retailer 2$929 AUD
Retailer 5$1,063 AUD
Retailer 7$1,101 AUD
Retailer 14$1,241 AUD
Retailer 12$1,414 AUD
Retailer 3$1,530 AUD
Retailer 4$2,164 AUD
Retailer 13$2,216 AUD
Retailer 8$2,410 AUD
Retailer 6$2,668 AUD
Retailer 10$2,686 AUD
Novita Diamonds$2,717 AUD

44 data points across 14 retailers

14 retailers$823 AUD to $2,686 AUD

A
Cheapest Retailer
-
$823 AUD
A
Retailer 2
-
$874 AUD
View
A
Retailer 3
-
$929 AUD
View
A
Retailer 4
-
$1,063 AUD
View
A
Retailer 5
-
$1,101 AUD
View
A
Retailer 6
-
$1,241 AUD
View
A
Retailer 7
-
$1,414 AUD
View
B+
Retailer 8
-
$1,530 AUD
View
Retailer 9
-
$2,164 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$2,216 AUD
View
B+
Retailer 11
-
$2,410 AUD
View
B
Retailer 12
-
$2,668 AUD
View
B
Retailer 13
-
$2,686 AUD
View
Most Expensive
Novita Diamonds
cert_801689971 · Oct 5
$2,717 AUD
View
Price last confirmed 32 days ago
13 more retailers have this diamond
Prices start from $823 AUDSave up to $1,863 AUD

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
$823 AUD