CaratHunter
Plans
Round|Lab Grown|IGI

1.28ct F FL Round Lab Grown Diamond

ID • F/FL • IGI LG840635053

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840635053

Diamond specifications and retailer prices

From €240 EUR
$268 USD
As of November 1, 2026
Save €1,674 EUR (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,914 EUR at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840635053 or 840635053. Listed at 22 retailers as of November 1, 2026, with prices from €240 to €1,914, a €1,674 spread on the same certified stone. Helzberg Diamonds lists it at €1,914. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
F
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840635053
Dimensions6.96 × 7.00 × 4.27 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
6.96 mm7.00 mm1.28 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840635053
Side View
Table 55.0%Crown 33.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.2%

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: Nov 1
Current: €1,914 EUR|Low: €240 EUR|High: €2,265 EUR|Avg: €805 EUR
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
Retailer 22
November 2, 2026
Retailer 9€240 EUR
Retailer 5€269 EUR
Retailer 3€277 EUR
Retailer 6€297 EUR
Retailer 21€297 EUR
Retailer 20€439 EUR
Retailer 2€479 EUR
Retailer 18€490 EUR
Retailer 10€493 EUR
Retailer 16€512 EUR
Retailer 4€524 EUR
Retailer 13€568 EUR
Retailer 22€638 EUR
Retailer 7€913 EUR
Retailer 12€955 EUR
Retailer 14€958 EUR
Retailer 8€1,001 EUR
Retailer 15€1,048 EUR
Retailer 19€1,197 EUR
Retailer 11€1,428 EUR
Retailer 17€1,584 EUR
Helzberg Diamonds€1,914 EUR

17 data points across 22 retailers

22 retailers€240 EUR to €1,914 EUR

A
Cheapest Retailer
-
€240 EUR
$268 USD
A
Retailer 2
-
€269 EUR
$300 USD
View
Final sale: no returns
A
Retailer 3
-
€277 EUR
$310 USD
View
Retailer 4
-
€297 EUR
$332 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
€297 EUR
$332 USD
View
A
Retailer 6
-
€439 EUR
$490 USD
View
A
Retailer 7
-
€479 EUR
£422 GBP
View
A
Retailer 8
-
€490 EUR
View
A
Retailer 9
-
€493 EUR
$551 USD
View
A
Retailer 10
-
€512 EUR
ZAR 9,244 ZAR
View
A
Retailer 11
-
€524 EUR
$585 USD
View
B+
Retailer 12
-
€568 EUR
£500 GBP
View
B+
Retailer 13
-
€638 EUR
$713 USD
View
B+
Retailer 14
-
€913 EUR
$1,020 USD
View
B
Retailer 15
-
€955 EUR
$1,067 USD
View
B
Retailer 16
-
€958 EUR
SGD 1,446 SGD
View
B
Retailer 17
-
€1,001 EUR
$1,118 USD
View
B
Retailer 18
-
€1,048 EUR
$1,171 USD
View
B+
Retailer 19
-
€1,197 EUR
£1,053 GBP
View
B
Retailer 20
-
€1,428 EUR
$1,595 USD
View
B
Retailer 21
-
€1,584 EUR
$1,770 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJLGLJ · Nov 1
€1,914 EUR
$2,138 USD
View
21 more retailers have this diamond
Prices start from €240 EURSave up to €1,674 EUR

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
1.28ct Round
€240 EUR