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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 $653 USD
HK$5,100 HKD
As of November 1, 2026
Save $1,827 USD (74%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,480 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 LG800680076 or 800680076. Listed at 15 retailers as of October 31, 2026, with prices from $653 to $2,480, a $1,827 spread on the same certified stone. Brilliant Earth lists it at $2,480. 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 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,480 USD|Low: $653 USD|High: $2,750 USD|Avg: $1,349 USD|-9.8%
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 2, 2026
Retailer 5$653 USD
Retailer 13$792 USD
Retailer 4$800 USD
Retailer 11$873 USD
Retailer 3$885 USD
Retailer 8$929 USD
Retailer 2$976 USD
Retailer 7$1,065 USD
Retailer 15$1,320 USD
Retailer 12$1,535 USD
Retailer 14$1,851 USD
Retailer 10$1,859 USD
Retailer 9$2,079 USD
Retailer 6$2,214 USD
Brilliant Earth$2,480 USD

41 data points across 15 retailers

15 retailers$653 USD to $2,480 USD

A
Cheapest Retailer
-
$653 USD
HK$5,100 HKD
A
Retailer 2
-
$792 USD
View
A
Retailer 3
-
$800 USD
View
A
Retailer 4
-
$873 USD
€831 EUR
View
A
Retailer 5
-
$885 USD
View
A
Retailer 6
-
$929 USD
£732 GBP
View
A
Retailer 7
-
$976 USD
ZAR 15,767 ZAR
View
B+
Retailer 8
-
$1,065 USD
A$1,638 AUD
View
Retailer 9
-
$1,320 USD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$1,535 USD
View
B
Retailer 11
-
$1,851 USD
View
B+
Retailer 12
-
$1,859 USD
A$2,860 AUD
View
B+
Retailer 13
-
$2,079 USD
£1,637 GBP
View
B
Retailer 14
-
$2,214 USD
View
Most Expensive
B
Brilliant Earth
21143371A · Oct 31
$2,480 USD
View
14 more retailers have this diamond
Prices start from $653 USDSave up to $1,827 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
$653 USD