Marquise|Lab Grown|IGI

1.20ct E VS1 Marquise Lab Grown Diamond

VG • E/VS1 • IGI LG839611392

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839611392

Diamond specifications and retailer prices

From $346 AUD
HK$1,900 HKD
As of November 1, 2026
Save $1,068 AUD (76%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,568 AUD at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG839611392 or 839611392. Listed at 19 retailers as of October 26, 2026, with a 308% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.8°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839611392
Dimensions11.65 × 5.62 × 3.09 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.65 mm5.62 mm1.20 ctE / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG839611392
Side View
Table 65.0%Crown 32.8°Girdle: MED-THKPavilion 37.2°Culet: NoneDepth 55.0%

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 1
Current: $756 AUD|Low: $233 AUD|High: $1,568 AUD|Avg: $700 AUD|-18.6%
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
Retailer 19
Reve Diamonds
October 31, 2026
Retailer 2$243 AUD
Retailer 5$270 AUD
Retailer 19$283 AUD
Retailer 3$302 AUD
Retailer 6$346 AUD
Retailer 17$380 AUD
Retailer 12$504 AUD
Retailer 15$511 AUD
Retailer 13$536 AUD
Retailer 18$540 AUD
Retailer 10$601 AUD
Retailer 9$656 AUD
Retailer 1$756 AUD
Retailer 16$883 AUD
Retailer 4$971 AUD
Retailer 8$993 AUD
Retailer 7$997 AUD
Retailer 11$1,049 AUD
Retailer 14$1,414 AUD
Reve Diamonds$1,568 AUD

26 data points across 20 retailers

19 retailers$346 AUD to $1,414 AUD

Retailer 1
-
$243 AUD
$171 USD
Price last confirmed 9 days ago
Retailer 2
-
$283 AUD
$199 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$302 AUD
$212 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$346 AUD
HK$1,900 HKD
View
Retailer 5
-
$380 AUD
£210 GBP
View
Price last confirmed 16 days ago
A
Retailer 6
-
$504 AUD
€337 EUR
View
Retailer 7
-
$511 AUD
ZAR 5,796 ZAR
View
Price last confirmed 10 days ago
A
Retailer 8
-
$536 AUD
£296 GBP
View
Retailer 9
-
$540 AUD
$379 USD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$601 AUD
$422 USD
View
B+
Retailer 11
-
$656 AUD
$461 USD
View
B+
Retailer 12
-
$756 AUD
$531 USD
View
B+
Retailer 13
-
$883 AUD
$620 USD
View
Retailer 14
-
$971 AUD
$682 USD
View
Price last confirmed 7 days ago
B
Retailer 15
-
$993 AUD
SGD 943 SGD
View
B
Retailer 16
-
$997 AUD
$700 USD
View
B
Retailer 17
-
$1,049 AUD
$737 USD
View
B
Retailer 18
-
$1,414 AUD
£782 GBP
View
Most Expensive
Reve Diamonds
8A4AB0110 · Oct 25
$1,568 AUD
$1,102 USD
View
Price last confirmed 8 days ago
18 more retailers have this diamond
Prices start from $346 AUDSave up to $1,068 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
$346 AUD