Marquise|Lab Grown|IGI

1.02ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG818668461

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818668461

Diamond specifications and retailer prices

From $356 AUD
$250 USD
As of October 30, 2026
Save $1,572 AUD (82%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,876 AUD at Brilliant Earth · As of September 26, 2026
View at Brilliant Earth

About this 1.02ct lab-grown marquise diamond

This 1.02ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818668461 or 818668461. Listed at 24 retailers as of October 30, 2026, with a 442% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.02
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818668461
Dimensions9.99 × 5.28 × 3.30 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.99 mm5.28 mm1.02 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818668461
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.5%

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: $841 AUD|Low: $342 AUD|High: $1,927 AUD|Avg: $870 AUD|+3.3%
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
October 31, 2026
Retailer 5$356 AUD
Retailer 3$399 AUD
Retailer 9$413 AUD
Retailer 6$441 AUD
Retailer 10$441 AUD
Retailer 2$470 AUD
Retailer 12$595 AUD
Retailer 18$669 AUD
Retailer 14$704 AUD
Retailer 16$759 AUD
Retailer 1$841 AUD
Retailer 7$859 AUD
Retailer 17$1,075 AUD
Retailer 11$1,100 AUD
Retailer 8$1,419 AUD
Retailer 13$1,496 AUD
Retailer 15$1,779 AUD
Retailer 4$1,927 AUD

37 data points across 18 retailers

24 retailers$356 AUD to $1,927 AUD

A
Cheapest Retailer
-
$356 AUD
$250 USD
A
Retailer 2
-
$399 AUD
$280 USD
View
Final sale: no returns
A
Retailer 3
-
$413 AUD
$290 USD
View
A
Retailer 4
-
$441 AUD
$310 USD
View
A
Retailer 5
-
$441 AUD
$310 USD
View
Retailer 6
-
$470 AUD
£260 GBP
View
Price last confirmed 14 days ago
A
Retailer 7
-
$595 AUD
$418 USD
View
A
Retailer 8
-
$669 AUD
$470 USD
View
A
Retailer 9
-
$704 AUD
€471 EUR
View
A
Retailer 10
-
$759 AUD
ZAR 8,613 ZAR
View
A
Retailer 11
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$837 AUD
$588 USD
View
A
Retailer 12
-
$841 AUD
£465 GBP
View
A
Retailer 13
-
$859 AUD
View
B+
Retailer 14
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$895 AUD
$629 USD
View
Retailer 15
-
$920 AUD
$646 USD
View
Price last confirmed 7 days ago
B+
Retailer 16
-
$1,075 AUD
View
B+
Retailer 17
-
$1,100 AUD
$773 USD
View
B+
Retailer 18
-
$1,419 AUD
$997 USD
View
B+
Retailer 19
-
$1,494 AUD
$1,049 USD
View
B+
Retailer 20
-
$1,496 AUD
View
B+
Retailer 21
-
$1,543 AUD
$1,084 USD
View
B+
Retailer 22
-
$1,779 AUD
£984 GBP
View
B
Retailer 23
-
$1,927 AUD
$1,354 USD
View
Most Expensive
Brilliant Earth
21103048A · Sep 26
$2,876 AUD
$2,020 USD
View
Price last confirmed 35 days ago
23 more retailers have this diamond
Prices start from $356 AUDSave up to $1,572 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
1.02ct Marquise
$356 AUD