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Round|Lab Grown|IGI

1.56ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG821640683

Shape and cutting style on the report: Round brilliant

Certificate IGI LG821640683

Diamond specifications and retailer prices

From €530 EUR
$595 USD
As of November 1, 2026
Save €2,465 EUR (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €2,996 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.56ct lab-grown round diamond

This 1.56ct lab-grown round 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 LG821640683 or 821640683. Listed at 11 retailers as of November 1, 2026, with prices from €530 to €2,996, a €2,465 spread on the same certified stone. Brilliant Earth lists it at €2,996. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821640683
Dimensions7.47 × 7.43 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.47 mm7.43 mm1.56 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821640683
Side View
Table 57.0%Crown 33°Girdle: MediumPavilion 41.3°Culet: NoneDepth 61.7%

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: €2,996 EUR|Low: €530 EUR|High: €2,996 EUR|Avg: €1,065 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7€530 EUR
Retailer 2€628 EUR
Retailer 3€712 EUR
Retailer 8€824 EUR
Retailer 5€1,237 EUR
Retailer 9€1,311 EUR
Retailer 4€1,549 EUR
Retailer 6€1,756 EUR
Brilliant Earth€2,996 EUR

42 data points across 9 retailers

11 retailers€530 EUR to €2,996 EUR

A
Cheapest Retailer
-
€530 EUR
$595 USD
A
Retailer 2
-
€628 EUR
View
A
Retailer 3
-
€712 EUR
£629 GBP
View
B+
Retailer 4
-
€824 EUR
$924 USD
View
B+
Retailer 5
-
€1,237 EUR
A$2,134 AUD
View
B
Retailer 6
-
€1,311 EUR
$1,470 USD
View
B+
Retailer 7
-
€1,549 EUR
£1,368 GBP
View
B
Retailer 8
-
€1,687 EUR
$1,892 USD
View
Retailer 9
-
€1,756 EUR
$1,970 USD
View
Price last confirmed 15 days ago
Retailer 10
-
€1,756 EUR
$1,970 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
22200268A · Nov 2
€2,996 EUR
$3,360 USD
View
10 more retailers have this diamond
Prices start from €530 EURSave up to €2,465 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
1.56ct Round
€530 EUR