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Marquise|Lab Grown|IGI

1.20ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG825687968

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825687968

Diamond specifications and retailer prices

From $396 AUD
As of November 6, 2026
Save $1,661 AUD (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,284 AUD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825687968 or 825687968. Listed at 23 retailers as of November 6, 2026, with a 420% 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

1.20
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825687968
Dimensions11.19 × 5.42 × 3.48 mm
L/W Ratio2.06
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
11.19 mm5.42 mm1.20 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825687968
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 64.2%

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: Nov 6
Current: $800 AUD|Low: $380 AUD|High: $2,420 AUD|Avg: $1,163 AUD|-0.5%
Retailer 1
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November 6, 2026
Retailer 4$396 AUD
Retailer 13$441 AUD
Retailer 3$460 AUD
Retailer 9$491 AUD
Retailer 15$491 AUD
Retailer 21$549 AUD
Retailer 19$674 AUD
Retailer 20$714 AUD
Retailer 1$800 AUD
Retailer 18$847 AUD
Retailer 12$856 AUD
Retailer 11$1,096 AUD
Retailer 17$1,204 AUD
Retailer 2$1,510 AUD
Retailer 7$1,577 AUD
Retailer 8$1,580 AUD
Retailer 10$1,651 AUD
Retailer 6$1,741 AUD
Retailer 16$1,963 AUD
Retailer 14$2,057 AUD
Retailer 22$2,093 AUD
Retailer 5$2,410 AUD

41 data points across 22 retailers

23 retailers$396 AUD to $2,057 AUD

A
Cheapest Retailer
-
$396 AUD
A
Retailer 2
-
$441 AUD
View
Final sale: no returns
A
Retailer 3
-
$460 AUD
View
Retailer 4
-
$491 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
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$491 AUD
View
A
Retailer 6
-
$549 AUD
View
A
Retailer 7
-
$674 AUD
View
A
Retailer 8
-
$714 AUD
View
A
Retailer 9
-
$800 AUD
View
A
Retailer 10
-
$847 AUD
View
A
Retailer 11
-
$856 AUD
View
B+
Retailer 12
-
$1,096 AUD
View
B+
Retailer 13
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$1,204 AUD
View
B+
Retailer 14
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$1,510 AUD
View
B+
Retailer 15
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$1,577 AUD
View
B+
Retailer 16
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$1,580 AUD
View
B+
Retailer 17
-
$1,651 AUD
View
B+
Retailer 18
-
$1,741 AUD
View
B+
Retailer 19
-
$1,963 AUD
View
B
Retailer 20
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$2,057 AUD
View
Retailer 21
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$2,093 AUD
View
Price last confirmed 9 days ago
Retailer 22
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$2,410 AUD
View
Price last confirmed 29 days ago
Most Expensive
Queensmith
LG825687968 · Oct 27
$3,284 AUD
£1,810 GBP
View
Price last confirmed 9 days ago
22 more retailers have this diamond
Prices start from $396 AUDSave up to $1,661 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
1.20ct Marquise
$396 AUD