CaratHunter
Plans
Marquise|Lab Grown|IGI

1.28ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG790611716

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790611716

Diamond specifications and retailer prices

From $725 SGD
As of October 30, 2026
Save $3,659 SGD (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,383 SGD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.28ct lab-grown marquise diamond

This 1.28ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790611716 or 790611716. Listed at 21 retailers as of October 30, 2026, with prices from $725 to $4,383, a $3,659 spread on the same certified stone. Brilliant Earth lists it at $4,383. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790611716
Dimensions10.90 × 5.72 × 3.57 mm
L/W Ratio1.91
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
10.90 mm5.72 mm1.28 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790611716
Side View
Table 56.0%Crown 34.8°Girdle: MED-STKPavilion 39.9°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: Oct 30
Current: $4,383 SGD|Low: $707 SGD|High: $4,383 SGD|Avg: $1,860 SGD
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 30, 2026
Retailer 14$725 SGD
Retailer 10$810 SGD
Retailer 5$811 SGD
Retailer 3$898 SGD
Retailer 20$898 SGD
Retailer 4$981 SGD
Retailer 17$1,067 SGD
Retailer 8$1,160 SGD
Retailer 22$1,224 SGD
Retailer 18$1,364 SGD
Retailer 9$1,385 SGD
Retailer 2$1,402 SGD
Retailer 16$1,544 SGD
Retailer 21$2,230 SGD
Retailer 19$2,363 SGD
Retailer 7$2,609 SGD
Retailer 12$2,838 SGD
Retailer 6$2,911 SGD
Retailer 11$3,021 SGD
Retailer 15$3,271 SGD
Retailer 13$3,922 SGD
Brilliant Earth$4,383 SGD

39 data points across 22 retailers

21 retailers$725 SGD to $4,383 SGD

A
Cheapest Retailer
-
$725 SGD
Retailer 2
-
$811 SGD
View
Price last confirmed 7 days ago
Retailer 3
-
$898 SGD
View
Price last confirmed 19 days ago
A
Retailer 4
-
$898 SGD
View
A
Retailer 5
-
$981 SGD
View
Retailer 6
-
$1,067 SGD
View
Price last confirmed 4 days ago
A
Retailer 7
-
$1,160 SGD
View
A
Retailer 8
-
$1,224 SGD
View
Retailer 9
-
$1,364 SGD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$1,385 SGD
View
B+
Retailer 11
-
$1,402 SGD
View
Retailer 12
-
$1,544 SGD
View
Price last confirmed 7 days ago
B
Retailer 13
-
$2,230 SGD
View
Retailer 14
-
$2,363 SGD
View
Price last confirmed 7 days ago
B
Retailer 15
-
$2,609 SGD
View
B
Retailer 16
-
$2,838 SGD
View
B
Retailer 17
-
$2,911 SGD
View
B
Retailer 18
-
$3,021 SGD
View
Retailer 19
-
$3,271 SGD
View
Price last confirmed 28 days ago
B
Retailer 20
-
$3,922 SGD
View
Most Expensive
B
Brilliant Earth
19960689A · Oct 30
$4,383 SGD
$3,430 USD
View
20 more retailers have this diamond
Prices start from $725 SGDSave up to $3,659 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
1.28ct Marquise
$725 SGD