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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 $672 USD
As of November 2, 2026
Save $1,548 USD (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,220 USD at Brilliant Earth · As of October 31, 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 LG801689971 or 801689971. Listed at 14 retailers as of October 31, 2026, with prices from $672 to $2,220, a $1,548 spread on the same certified stone. Brilliant Earth lists it at $2,220. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,220 USD|Low: $672 USD|High: $2,540 USD|Avg: $1,313 USD|-12.6%
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
November 2, 2026
Retailer 3$672 USD
Retailer 11$730 USD
Retailer 12$744 USD
Retailer 4$800 USD
Retailer 7$869 USD
Retailer 2$929 USD
Retailer 9$1,071 USD
Retailer 14$1,320 USD
Retailer 10$1,515 USD
Retailer 6$1,868 USD
Retailer 5$1,902 USD
Retailer 13$1,967 USD
Retailer 8$2,082 USD
Brilliant Earth$2,220 USD

44 data points across 14 retailers

14 retailers$672 USD to $2,220 USD

A
Cheapest Retailer
-
$672 USD
A
Retailer 2
-
$730 USD
HK$5,700 HKD
View
A
Retailer 3
-
$744 USD
View
A
Retailer 4
-
$800 USD
View
A
Retailer 5
-
$869 USD
€828 EUR
View
A
Retailer 6
-
$929 USD
£732 GBP
View
B+
Retailer 7
-
$1,071 USD
A$1,648 AUD
View
Retailer 8
-
$1,320 USD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$1,515 USD
View
B
Retailer 10
-
$1,868 USD
View
Retailer 11
-
$1,902 USD
A$2,926 AUD
View
Price last confirmed 28 days ago
B
Retailer 12
-
$1,967 USD
View
Retailer 13
-
$2,082 USD
£1,639 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
20869453Y · Oct 31
$2,220 USD
View
13 more retailers have this diamond
Prices start from $672 USDSave up to $1,548 USD

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
$672 USD