Radiant|Lab Grown|IGI

1.85ct F IF Radiant Lab Grown Diamond

EX • F/IF • IGI LG680543344

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

Certificate IGI LG680543344

Diamond specifications and retailer prices

From $806 USD
As of November 2, 2026
Save $1,241 USD (61%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,820 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.85ct lab-grown radiant diamond

This 1.85ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG680543344 or 680543344. Listed at 9 retailers as of October 29, 2026, with a 154% 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

1.85
Carat
F
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680543344
Dimensions6.19 × 6.19 × 4.18 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
6.19 mm6.19 mm1.85 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG680543344
Side View
Table 67.0%Crown 42.8°Girdle: Slightly ThickPavilion 36°Culet: NoneDepth 67.5%

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: Nov 2
Current: $2,820 USD|Low: $806 USD|High: $2,820 USD|Avg: $1,434 USD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6$806 USD
Retailer 8$871 USD
Retailer 3$917 USD
Retailer 2$965 USD
Retailer 5$1,499 USD
Retailer 9$1,709 USD
Retailer 7$1,814 USD
Retailer 4$2,047 USD
Rare Carat$2,820 USD

44 data points across 9 retailers

9 retailers$806 USD to $2,047 USD

A
Cheapest Retailer
-
$806 USD
A
Retailer 2
-
$871 USD
View
A
Retailer 3
-
$917 USD
£722 GBP
View
A
Retailer 4
-
$965 USD
€919 EUR
View
B+
Retailer 5
-
$1,499 USD
View
Retailer 6
-
$1,709 USD
A$2,629 AUD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$1,814 USD
View
B
Retailer 8
-
$2,047 USD
£1,612 GBP
View
Most Expensive
Rare Carat
SKD-35718 · Oct 21
$2,820 USD
View
Price last confirmed 12 days ago
8 more retailers have this diamond
Prices start from $806 USDSave up to $1,241 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
1.85ct Radiant
$806 USD