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Marquise|Lab Grown|IGI

1.25ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG818677645

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818677645

Diamond specifications and retailer prices

From $905 AUD
$634 USD
As of November 1, 2026
Save $3,470 AUD (79%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,375 AUD at MOH London · As of November 3, 2026
View at MOH London

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 E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818677645 or 818677645. Listed at 24 retailers as of November 1, 2026, with prices from $905 to $4,375, a $3,470 spread on the same certified stone. MOH London lists it at $4,375. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818677645
Dimensions11.47 × 5.65 × 3.35 mm
L/W Ratio2.03
Girdle conditionFaceted
Culet sizeNone
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
11.47 mm5.65 mm1.25 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818677645
Side View
Table 63.0%Crown 33.3°Girdle: MED-STKPavilion 40°Culet: NoneDepth 59.3%

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: Nov 1
Current: $4,375 AUD|Low: $766 AUD|High: $4,378 AUD|Avg: $2,050 AUD|+0.3%
MOH London
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 3, 2026
Retailer 7$766 AUD
Retailer 14$905 AUD
Retailer 4$985 AUD
Retailer 10$1,191 AUD
Retailer 13$1,343 AUD
Retailer 11$1,539 AUD
Retailer 12$1,544 AUD
Retailer 9$1,566 AUD
Retailer 8$1,730 AUD
Retailer 2$2,147 AUD
Retailer 15$2,638 AUD
Retailer 5$2,870 AUD
Retailer 3$3,251 AUD
Retailer 6$3,781 AUD
MOH London$4,375 AUD

43 data points across 15 retailers

24 retailers$905 AUD to $4,375 AUD

Retailer 1
-
$766 AUD
$537 USD
Price last confirmed 31 days ago
Retailer 2
-
$793 AUD
$556 USD
View
Price last confirmed 25 days ago
Retailer 3
-
$893 AUD
$626 USD
View
Price last confirmed 34 days ago
A
Retailer 4
-
$905 AUD
$634 USD
View
Final sale: no returns
Retailer 5
-
$976 AUD
$684 USD
View
Price last confirmed 35 days ago
Retailer 6
-
$985 AUD
$690 USD
View
Price last confirmed 16 days ago
Retailer 7
-
$985 AUD
$690 USD
View
Price last confirmed 30 days ago
Retailer 8
-
$985 AUD
$690 USD
View
Price last confirmed 21 days ago
A
Retailer 9
-
$1,003 AUD
$703 USD
View
A
Retailer 10
-
$1,191 AUD
$835 USD
View
A
Retailer 11
-
$1,343 AUD
$941 USD
View
B+
Retailer 12
-
$1,539 AUD
€1,027 EUR
View
B+
Retailer 13
-
$1,544 AUD
$1,082 USD
View
B+
Retailer 14
-
$1,566 AUD
£864 GBP
View
B+
Retailer 15
-
$1,730 AUD
ZAR 19,585 ZAR
View
B+
Retailer 16
-
$2,147 AUD
$1,505 USD
View
Retailer 17
-
$2,601 AUD
$1,823 USD
View
Price last confirmed 33 days ago
B
Retailer 18
-
$2,638 AUD
$1,849 USD
View
B
Retailer 19
-
$2,638 AUD
$1,849 USD
View
Retailer 20
-
$2,870 AUD
£1,584 GBP
View
Price last confirmed 19 days ago
B
Retailer 21
-
$3,251 AUD
$2,278 USD
View
B
Retailer 22
-
$3,367 AUD
$2,360 USD
View
B
Retailer 23
-
$3,781 AUD
$2,650 USD
View
Most Expensive
B
MOH London
LG818677645 · Nov 3
$4,375 AUD
£2,414 GBP
View
23 more retailers have this diamond
Prices start from $905 AUDSave up to $3,470 AUD

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
$905 AUD