CaratHunter
Plans
Marquise|Lab Grown|IGI

1.31ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG842609053

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG842609053

Diamond specifications and retailer prices

From $404 USD
As of October 27, 2026
Save $3,106 USD (88%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,510 USD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.31ct lab-grown marquise diamond

This 1.31ct 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 LG842609053 or 842609053. Listed at 22 retailers as of October 26, 2026, with prices from $404 to $3,510, a $3,106 spread on the same certified stone. Brilliant Earth lists it at $3,510. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842609053
Dimensions11.20 × 5.78 × 3.60 mm
L/W Ratio1.94
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
11.20 mm5.78 mm1.31 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842609053
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

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 27
Current: $764 USD|Low: $404 USD|High: $2,535 USD|Avg: $1,153 USD|-0.1%
Retailer 1
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
Retailer 23
October 27, 2026
Retailer 7$404 USD
Retailer 19$452 USD
Retailer 3$501 USD
Retailer 22$501 USD
Retailer 10$508 USD
Retailer 4$518 USD
Retailer 6$650 USD
Retailer 15$711 USD
Retailer 1$764 USD
Retailer 11$796 USD
Retailer 16$798 USD
Retailer 12$818 USD
Retailer 18$847 USD
Retailer 2$937 USD
Retailer 5$1,095 USD
Retailer 8$1,609 USD
Retailer 13$1,645 USD
Retailer 20$1,656 USD
Retailer 14$1,837 USD
Retailer 23$1,844 USD
Retailer 17$1,958 USD
Retailer 21$2,297 USD
Retailer 9$2,535 USD

16 data points across 23 retailers

22 retailers$404 USD to $3,510 USD

A
Cheapest Retailer
-
$404 USD
Retailer 2
-
$452 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$501 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$501 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$650 USD
View
Price last confirmed 5 days ago
Retailer 6
-
$711 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
$764 USD
€728 EUR
View
Retailer 8
-
$796 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$798 USD
View
Price last confirmed 7 days ago
A
Retailer 10
-
$818 USD
£644 GBP
View
Retailer 11
-
$847 USD
ZAR 13,679 ZAR
View
Price last confirmed 9 days ago
A
Retailer 12
-
$937 USD
View
Retailer 13
-
$1,095 USD
View
Price last confirmed 9 days ago
Retailer 14
-
$1,609 USD
View
Price last confirmed 8 days ago
B+
Retailer 15
-
$1,645 USD
View
B+
Retailer 16
-
$1,656 USD
CA$2,300 CAD
View
B+
Retailer 17
-
$1,837 USD
View
Retailer 18
-
$1,844 USD
View
Price last confirmed 8 days ago
B+
Retailer 19
-
$1,958 USD
£1,542 GBP
View
B
Retailer 20
-
$2,297 USD
View
Retailer 21
-
$2,535 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
22269299A · Oct 26
$3,510 USD
View
21 more retailers have this diamond
Prices start from $404 USDSave up to $3,106 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
1.31ct Marquise
$404 USD