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Round|Lab Grown|IGI

1.03ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818661947

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818661947

Diamond specifications and retailer prices

From $251 USD
As of October 28, 2026
Save $1,199 USD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,450 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round 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 LG818661947 or 818661947. Listed at 22 retailers as of October 28, 2026, with prices from $251 to $1,450, a $1,199 spread on the same certified stone. Brilliant Earth lists it at $1,450. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818661947
Dimensions6.58 × 6.52 × 3.94 mm
L/W Ratio1.01
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
6.58 mm6.52 mm1.03 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818661947
Side View
Table 58.0%Crown 33.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
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: Oct 28
Current: $1,450 USD|Low: $194 USD|High: $1,450 USD|Avg: $692 USD
Brilliant Earth
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 3$251 USD
Retailer 5$305 USD
Retailer 10$392 USD
Retailer 8$467 USD
Retailer 12$479 USD
Retailer 13$494 USD
Retailer 6$518 USD
Retailer 4$603 USD
Retailer 11$899 USD
Retailer 7$948 USD
Retailer 9$1,123 USD
Retailer 2$1,273 USD
Brilliant Earth$1,450 USD

35 data points across 13 retailers

22 retailers$251 USD to $1,450 USD

Retailer 1
-
$234 USD
Price last confirmed 19 days ago
Retailer 2
-
$244 USD
View
Price last confirmed 37 days ago
A
Retailer 3
-
$251 USD
View
Final sale: no returns
Retailer 4
-
$271 USD
View
Price last confirmed 20 days ago
Retailer 5
-
$283 USD
View
Price last confirmed 40 days ago
Retailer 6
-
$290 USD
View
Price last confirmed 27 days ago
Retailer 7
-
$290 USD
View
Price last confirmed 17 days ago
Retailer 8
-
$299 USD
View
Price last confirmed 35 days ago
Retailer 9
-
$301 USD
View
Price last confirmed 48 days ago
A
Retailer 10
-
$392 USD
View
A
Retailer 11
-
$467 USD
€445 EUR
View
A
Retailer 12
-
$479 USD
ZAR 7,734 ZAR
View
A
Retailer 13
-
$494 USD
View
A
Retailer 14
-
$518 USD
£408 GBP
View
B+
Retailer 15
-
$603 USD
View
B
Retailer 16
-
$899 USD
View
Retailer 17
-
$931 USD
View
Price last confirmed 30 days ago
B
Retailer 18
-
$948 USD
View
Retailer 19
-
$974 USD
View
Price last confirmed 33 days ago
B+
Retailer 20
-
$1,123 USD
£884 GBP
View
B
Retailer 21
-
$1,273 USD
View
Most Expensive
B
Brilliant Earth
21241428A · Oct 29
$1,450 USD
View
21 more retailers have this diamond
Prices start from $251 USDSave up to $1,199 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
1.03ct Round
$251 USD