CaratHunter
Plans
Round|Lab Grown|IGI

1.20ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG818644850

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818644850

Diamond specifications and retailer prices

From $296 AUD
$208 USD
As of October 30, 2026
Save $1,338 AUD (82%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,037 AUD at Queensmith · As of October 27, 2026
View at Queensmith

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818644850 or 818644850. Listed at 23 retailers as of October 30, 2026, with a 452% 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644850
Dimensions6.79 × 6.82 × 4.22 mm
L/W Ratio1.00
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
6.79 mm6.82 mm1.20 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644850
Side View
Table 55.0%Crown 34.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.0%

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: $558 AUD|Low: $253 AUD|High: $1,551 AUD|Avg: $677 AUD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 11$265 AUD
Retailer 12$327 AUD
Retailer 3$364 AUD
Retailer 2$441 AUD
Retailer 6$555 AUD
Retailer 1$558 AUD
Retailer 7$563 AUD
Retailer 5$592 AUD
Retailer 8$799 AUD
Retailer 10$836 AUD
Retailer 4$1,053 AUD
Retailer 9$1,535 AUD

37 data points across 12 retailers

23 retailers$296 AUD to $1,634 AUD

Retailer 1
-
$265 AUD
$186 USD
Price last confirmed 12 days ago
A
Retailer 2
-
$296 AUD
$208 USD
View
Final sale: no returns
A
Retailer 3
-
$306 AUD
$215 USD
View
Retailer 4
-
$327 AUD
$230 USD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$327 AUD
$230 USD
View
A
Retailer 6
-
$364 AUD
HK$2,000 HKD
View
B+
Retailer 7
-
$441 AUD
$310 USD
View
A
Retailer 8
-
$551 AUD
$387 USD
View
A
Retailer 9
-
$555 AUD
€371 EUR
View
A
Retailer 10
-
$558 AUD
£309 GBP
View
A
Retailer 11
-
$563 AUD
ZAR 6,385 ZAR
View
B+
Retailer 12
-
$592 AUD
£327 GBP
View
B+
Retailer 13
-
$678 AUD
$476 USD
View
B+
Retailer 14
-
$799 AUD
View
B+
Retailer 15
-
$836 AUD
$587 USD
View
Retailer 16
-
$1,053 AUD
$740 USD
View
Price last confirmed 12 days ago
B
Retailer 17
-
$1,067 AUD
SGD 1,013 SGD
View
B
Retailer 18
-
$1,096 AUD
$770 USD
View
B
Retailer 19
-
$1,130 AUD
$794 USD
View
Retailer 20
-
$1,239 AUD
$870 USD
View
Price last confirmed 40 days ago
B
Retailer 21
-
$1,535 AUD
£849 GBP
View
B
Retailer 22
-
$1,634 AUD
$1,148 USD
View
Most Expensive
Queensmith
LG818644850 · Oct 27
$3,037 AUD
£1,680 GBP
View
Price under review
22 more retailers have this diamond
Prices start from $296 AUDSave up to $1,338 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
$296 AUD