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Round|Lab Grown|IGI

1.20ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG837615667

Shape and cutting style on the report: Round brilliant

Certificate IGI LG837615667

Diamond specifications and retailer prices

From $337 AUD
$236 USD
As of November 1, 2026
Save $1,775 AUD (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $2,112 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round 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 LG837615667 or 837615667. Listed at 20 retailers as of November 1, 2026, with prices from $337 to $2,112, a $1,775 spread on the same certified stone. Brilliant Earth lists it at $2,112. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837615667
Dimensions6.92 × 6.87 × 4.13 mm
L/W Ratio1.01
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
6.92 mm6.87 mm1.20 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837615667
Side View
Table 60.0%Crown 33.6°Girdle: MediumPavilion 40.9°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
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 1
Current: $2,112 AUD|Low: $334 AUD|High: $2,112 AUD|Avg: $886 AUD
Brilliant Earth
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
November 3, 2026
Retailer 18$337 AUD
Retailer 5$378 AUD
Retailer 8$391 AUD
Retailer 10$414 AUD
Retailer 6$418 AUD
Retailer 7$574 AUD
Retailer 14$662 AUD
Retailer 16$704 AUD
Retailer 17$722 AUD
Retailer 3$759 AUD
Retailer 13$787 AUD
Retailer 12$1,023 AUD
Retailer 15$1,057 AUD
Retailer 2$1,341 AUD
Retailer 4$1,418 AUD
Retailer 9$1,669 AUD
Retailer 19$1,868 AUD
Retailer 11$1,905 AUD
Brilliant Earth$2,112 AUD

23 data points across 19 retailers

20 retailers$337 AUD to $2,112 AUD

A
Cheapest Retailer
-
$337 AUD
$236 USD
A
Retailer 2
-
$378 AUD
$265 USD
View
Final sale: no returns
A
Retailer 3
-
$391 AUD
$274 USD
View
Retailer 4
-
$414 AUD
$290 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$418 AUD
$293 USD
View
A
Retailer 6
-
$574 AUD
$402 USD
View
A
Retailer 7
-
$662 AUD
£365 GBP
View
A
Retailer 8
-
$704 AUD
€470 EUR
View
A
Retailer 9
-
$722 AUD
ZAR 8,171 ZAR
View
A
Retailer 10
-
$759 AUD
$532 USD
View
A
Retailer 11
-
$787 AUD
£434 GBP
View
B+
Retailer 12
-
$992 AUD
$695 USD
View
B+
Retailer 13
-
$1,023 AUD
View
B+
Retailer 14
-
$1,057 AUD
$741 USD
View
B+
Retailer 15
-
$1,341 AUD
$940 USD
View
B+
Retailer 16
-
$1,418 AUD
$994 USD
View
B+
Retailer 17
-
$1,669 AUD
£921 GBP
View
B+
Retailer 18
-
$1,868 AUD
$1,309 USD
View
B
Retailer 19
-
$1,905 AUD
$1,335 USD
View
Most Expensive
B
Brilliant Earth
21690652A · Nov 2
$2,112 AUD
$1,480 USD
View
19 more retailers have this diamond
Prices start from $337 AUDSave up to $1,775 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 Round
$337 AUD