Radiant|Lab Grown|IGI

1.83ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG816615222

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

Certificate IGI LG816615222

Diamond specifications and retailer prices

From $899 USD
As of October 30, 2026
Save $3,211 USD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,420 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.83ct lab-grown radiant diamond

This 1.83ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816615222 or 816615222. Listed at 8 retailers as of October 30, 2026, with a 357% 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

1.83
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615222
Dimensions8.43 × 6.19 × 4.16 mm
L/W Ratio1.36
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
8.43 mm6.19 mm1.83 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615222
Side View
Table 65.0%Crown 44.5°Girdle: Slightly ThickPavilion 36°Culet: NoneDepth 67.2%

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: $4,420 USD|Low: $552 USD|High: $5,290 USD|Avg: $2,364 USD|+9.4%
Rare Carat
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 30, 2026
Retailer 13$552 USD
Retailer 10$899 USD
Retailer 7$940 USD
Retailer 12$1,258 USD
Retailer 9$1,480 USD
Retailer 5$1,571 USD
Retailer 11$1,991 USD
Retailer 3$2,316 USD
Retailer 6$2,662 USD
Retailer 4$2,766 USD
Retailer 2$3,360 USD
Retailer 8$4,110 USD
Rare Carat$4,420 USD

16 data points across 13 retailers

8 retailers$899 USD to $4,110 USD

A
Cheapest Retailer
-
$899 USD
A
Retailer 2
-
$940 USD
View
B+
Retailer 3
-
$1,480 USD
View
B+
Retailer 4
-
$1,991 USD
View
B+
Retailer 5
-
$2,662 USD
£2,096 GBP
View
B
Retailer 6
-
$3,360 USD
View
B
Retailer 7
-
$4,110 USD
View
Most Expensive
Rare Carat
PD-227809 · Oct 21
$4,420 USD
View
Price last confirmed 9 days ago
7 more retailers have this diamond
Prices start from $899 USDSave up to $3,211 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
1.83ct Radiant
$899 USD