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Marquise|Lab Grown|IGI

1.80ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG816672824

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816672824

Diamond specifications and retailer prices

From $776 AUD
$545 USD
As of October 30, 2026
Save $6,114 AUD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $6,890 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.8ct lab-grown marquise diamond

This 1.8ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816672824 or 816672824. Listed at 22 retailers as of October 29, 2026, with prices from $776 to $6,890, a $6,114 spread on the same certified stone. Do Amore Diamonds lists it at $6,890. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816672824
Dimensions13.09 × 6.38 × 3.91 mm
L/W Ratio2.05
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
13.09 mm6.38 mm1.80 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816672824
Side View
Table 63.0%Crown 33.9°Girdle: MediumPavilion 40.4°Culet: NoneDepth 61.3%

Caratlytics Score

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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: Oct 30
Current: $6,890 AUD|Low: $776 AUD|High: $6,890 AUD|Avg: $2,657 AUD
Do Amore Diamonds
Retailer 2
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October 30, 2026
Retailer 4$776 AUD
Retailer 7$868 AUD
Retailer 22$870 AUD
Retailer 5$962 AUD
Retailer 13$1,097 AUD
Retailer 19$1,153 AUD
Retailer 10$1,394 AUD
Retailer 14$1,486 AUD
Retailer 11$1,636 AUD
Retailer 16$1,662 AUD
Retailer 18$1,826 AUD
Retailer 21$2,349 AUD
Retailer 2$2,474 AUD
Retailer 6$2,795 AUD
Retailer 3$3,098 AUD
Retailer 9$3,102 AUD
Retailer 12$3,602 AUD
Retailer 8$3,643 AUD
Retailer 20$4,022 AUD
Retailer 17$4,637 AUD
Retailer 15$4,672 AUD
Do Amore Diamonds$6,890 AUD

33 data points across 22 retailers

22 retailers$776 AUD to $6,890 AUD

A
Cheapest Retailer
-
$776 AUD
$545 USD
A
Retailer 2
-
$868 AUD
$610 USD
View
Final sale: no returns
A
Retailer 3
-
$870 AUD
$611 USD
View
A
Retailer 4
-
$962 AUD
$676 USD
View
A
Retailer 5
-
$1,097 AUD
£607 GBP
View
A
Retailer 6
-
$1,153 AUD
$810 USD
View
A
Retailer 7
-
$1,394 AUD
$979 USD
View
A
Retailer 8
-
$1,486 AUD
$1,044 USD
View
A
Retailer 9
-
$1,636 AUD
$1,149 USD
View
A
Retailer 10
-
$1,662 AUD
£919 GBP
View
A
Retailer 11
-
$1,826 AUD
ZAR 20,720 ZAR
View
A
Retailer 12
-
$2,349 AUD
$1,650 USD
View
A
Retailer 13
-
$2,474 AUD
View
A
Retailer 14
-
$2,795 AUD
$1,963 USD
View
B+
Retailer 15
-
$3,098 AUD
$2,176 USD
View
B+
Retailer 16
-
$3,102 AUD
£1,716 GBP
View
B+
Retailer 17
-
$3,602 AUD
$2,530 USD
View
B+
Retailer 18
-
$3,643 AUD
SGD 3,458 SGD
View
B+
Retailer 19
-
$4,022 AUD
$2,825 USD
View
B+
Retailer 20
-
$4,637 AUD
£2,565 GBP
View
Retailer 21
-
$4,672 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Do Amore Diamonds
27-E0EB2547A · Oct 29
$6,890 AUD
$4,840 USD
View
21 more retailers have this diamond
Prices start from $776 AUDSave up to $6,114 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
1.80ct Marquise
$776 AUD