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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 $638 SGD
As of November 4, 2026
Save $2,046 SGD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,684 SGD 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 $638 to $2,684, a $2,046 spread on the same certified stone. Brilliant Earth lists it at $2,684. 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

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $2,684 SGD|Low: $638 SGD|High: $3,514 SGD|Avg: $1,710 SGD|-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 9$638 SGD
Retailer 10$782 SGD
Retailer 2$985 SGD
Retailer 5$1,012 SGD
Retailer 3$1,114 SGD
Retailer 6$1,131 SGD
Retailer 14$1,246 SGD
Retailer 12$1,265 SGD
Retailer 7$1,360 SGD
Retailer 13$1,833 SGD
Retailer 4$1,962 SGD
Retailer 11$2,121 SGD
Retailer 8$2,156 SGD
Retailer 15$2,376 SGD
Brilliant Earth$2,684 SGD

41 data points across 15 retailers

15 retailers$638 SGD to $2,684 SGD

A
Cheapest Retailer
-
$638 SGD
A
Retailer 2
-
$782 SGD
View
A
Retailer 3
-
$985 SGD
View
A
Retailer 4
-
$1,012 SGD
View
A
Retailer 5
-
$1,114 SGD
View
A
Retailer 6
-
$1,131 SGD
View
A
Retailer 7
-
$1,246 SGD
View
A
Retailer 8
-
$1,265 SGD
View
B+
Retailer 9
-
$1,360 SGD
View
B+
Retailer 10
-
$1,833 SGD
View
Retailer 11
-
$1,962 SGD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$2,121 SGD
View
B+
Retailer 13
-
$2,156 SGD
View
B
Retailer 14
-
$2,376 SGD
View
Most Expensive
B
Brilliant Earth
21143371A · Nov 4
$2,684 SGD
$2,100 USD
View
14 more retailers have this diamond
Prices start from $638 SGDSave up to $2,046 SGD

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
$638 SGD