CaratHunter
Plans
Radiant|Lab Grown|IGI

1.20ct F SI1 Radiant Lab Grown Diamond

GD • F/SI1 • IGI LG617442511

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG617442511

Diamond specifications and retailer prices

From $147 USD
As of October 27, 2026
Save $1,263 USD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,410 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.2ct lab-grown radiant diamond

This 1.2ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG617442511 or 617442511. Listed at 10 retailers as of October 27, 2026, with prices from $147 to $1,410, a $1,263 spread on the same certified stone. Do Amore Diamonds lists it at $1,410. 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
F
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617442511
Dimensions7.64 × 5.19 × 3.44 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.64 mm5.19 mm1.20 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617442511
Side View
Table 68.0%Crown 45.2°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 66.3%

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 27
Current: $1,410 USD|Low: $117 USD|High: $1,480 USD|Avg: $630 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 25, 2026
Retailer 7$147 USD
Retailer 10$164 USD
Retailer 8$335 USD
Retailer 13$347 USD
Retailer 4$469 USD
Retailer 12$472 USD
Retailer 3$477 USD
Retailer 5$497 USD
Retailer 6$618 USD
Retailer 11$800 USD
Retailer 2$941 USD
Retailer 9$1,190 USD
Do Amore Diamonds$1,410 USD

12 data points across 13 retailers

10 retailers$147 USD to $1,410 USD

A
Cheapest Retailer
-
$147 USD
A
Retailer 2
-
$164 USD
View
Final sale: no returns
A
Retailer 3
-
$170 USD
View
B
Retailer 4
-
$335 USD
View
Retailer 5
-
$618 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$646 USD
View
B
Retailer 7
-
$800 USD
View
Retailer 8
-
$941 USD
£741 GBP
View
Price last confirmed 9 days ago
C
Retailer 9
-
$1,190 USD
View
Most Expensive
C
Do Amore Diamonds
27-297A3C0A0 · Oct 29
$1,410 USD
View
9 more retailers have this diamond
Prices start from $147 USDSave up to $1,263 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 Radiant
$147 USD