CaratHunter
Plans
Round|Lab Grown|IGI

1.00ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG840634477

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840634477

Diamond specifications and retailer prices

From $221 USD
As of October 29, 2026
Save $1,673 USD (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,894 USD at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840634477 or 840634477. Listed at 21 retailers as of October 29, 2026, with prices from $221 to $1,894, a $1,673 spread on the same certified stone. Helzberg Diamonds lists it at $1,894. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634477
Dimensions6.41 × 6.44 × 3.95 mm
L/W Ratio1.00
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
6.41 mm6.44 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634477
Side View
Table 55.0%Crown 33.4°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.5%

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: Oct 29
Current: $1,894 USD|Low: $221 USD|High: $1,894 USD|Avg: $708 USD
Helzberg 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 8$221 USD
Retailer 9$248 USD
Retailer 11$257 USD
Retailer 4$274 USD
Retailer 19$274 USD
Retailer 15$436 USD
Retailer 16$463 USD
Retailer 6$468 USD
Retailer 18$471 USD
Retailer 3$507 USD
Retailer 21$507 USD
Retailer 2$509 USD
Retailer 10$746 USD
Retailer 5$882 USD
Retailer 20$885 USD
Retailer 14$935 USD
Retailer 12$952 USD
Retailer 7$1,025 USD
Retailer 17$1,105 USD
Retailer 13$1,250 USD
Helzberg Diamonds$1,894 USD

13 data points across 21 retailers

21 retailers$221 USD to $1,894 USD

A
Cheapest Retailer
-
$221 USD
A
Retailer 2
-
$248 USD
View
Final sale: no returns
A
Retailer 3
-
$257 USD
View
A
Retailer 4
-
$274 USD
View
A
Retailer 5
-
$274 USD
View
A
Retailer 6
-
$436 USD
£344 GBP
View
A
Retailer 7
-
$463 USD
€441 EUR
View
A
Retailer 8
-
$468 USD
View
A
Retailer 9
-
$471 USD
ZAR 7,614 ZAR
View
A
Retailer 10
-
$507 USD
View
A
Retailer 11
-
$507 USD
View
A
Retailer 12
-
$509 USD
£401 GBP
View
B+
Retailer 13
-
$746 USD
SGD 1,008 SGD
View
B+
Retailer 14
-
$882 USD
View
B+
Retailer 15
-
$885 USD
View
B+
Retailer 16
-
$935 USD
View
B
Retailer 17
-
$952 USD
View
Retailer 18
-
$1,025 USD
View
Price last confirmed 10 days ago
B+
Retailer 19
-
$1,105 USD
£870 GBP
View
B+
Retailer 20
-
$1,250 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJKKNN · Oct 30
$1,894 USD
View
20 more retailers have this diamond
Prices start from $221 USDSave up to $1,673 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
1.00ct Round
$221 USD