Marquise|Lab Grown|IGI

1.20ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG800680286

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800680286

Diamond specifications and retailer prices

From $678 USD
HK$5,300 HKD
As of October 30, 2026
Save $1,625 USD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,303 USD at With Clarity · As of October 30, 2026
View at With Clarity

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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800680286 or 800680286. Listed at 13 retailers as of October 30, 2026, with prices from $678 to $2,303, a $1,625 spread on the same certified stone. With Clarity lists it at $2,303. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800680286
Dimensions10.83 × 5.59 × 3.52 mm
L/W Ratio1.94
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
10.83 mm5.59 mm1.20 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800680286
Side View
Table 57.0%Crown 33.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.0%

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: $974 USD|Low: $506 USD|High: $2,840 USD|Avg: $1,446 USD|-4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
October 30, 2026
Retailer 3$678 USD
Retailer 9$810 USD
Retailer 2$830 USD
Retailer 12$853 USD
Retailer 5$905 USD
Retailer 1$974 USD
Retailer 4$1,045 USD
Retailer 11$1,373 USD
Retailer 10$1,917 USD
Retailer 6$2,169 USD
Retailer 7$2,180 USD
Retailer 8$2,265 USD
With Clarity$2,303 USD

42 data points across 13 retailers

13 retailers$678 USD to $2,303 USD

A
Cheapest Retailer
-
$678 USD
HK$5,300 HKD
A
Retailer 2
-
$810 USD
View
B+
Retailer 3
-
$830 USD
View
A
Retailer 4
-
$853 USD
View
B+
Retailer 5
-
$905 USD
€862 EUR
View
B+
Retailer 6
-
$974 USD
£767 GBP
View
B+
Retailer 7
-
$1,045 USD
A$1,608 AUD
View
B+
Retailer 8
-
$1,373 USD
View
B
Retailer 9
-
$1,917 USD
View
B
Retailer 10
-
$2,169 USD
£1,708 GBP
View
B
Retailer 11
-
$2,180 USD
View
B
Retailer 12
-
$2,265 USD
View
Most Expensive
B
With Clarity
800680286 · Oct 30
$2,303 USD
View
12 more retailers have this diamond
Prices start from $678 USDSave up to $1,625 USD

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
$678 USD