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16.04ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG681573931

Shape and cutting style on the report: Round brilliant

Certificate IGI LG681573931

Diamond specifications and retailer prices

From €3,969 EUR
£3,491 GBP
As of November 1, 2026
Save €15,759 EUR (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €19,728 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 16.04ct lab-grown round diamond

This 16.04ct lab-grown round sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG681573931 or 681573931. Listed at 10 retailers as of October 31, 2026, with prices from €3,969 to €19,728, a €15,759 spread on the same certified stone. Brilliant Earth lists it at €19,728. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

16.04
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681573931
Dimensions16.37 × 16.29 × 9.71 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.37 mm16.29 mm16.04 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681573931
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 40°Culet: NoneDepth 59.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €19,728 EUR|Low: €2,372 EUR|High: €19,889 EUR|Avg: €8,300 EUR|+0.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 3€3,969 EUR
Retailer 5€4,945 EUR
Retailer 8€5,124 EUR
Retailer 2€6,263 EUR
Retailer 6€6,311 EUR
Retailer 9€7,640 EUR
Retailer 4€9,833 EUR
Retailer 7€12,254 EUR
Retailer 10€17,699 EUR
Brilliant Earth€19,728 EUR

39 data points across 10 retailers

10 retailers€3,969 EUR to €19,728 EUR

B+
Cheapest Retailer
-
€3,969 EUR
£3,491 GBP
B+
Retailer 2
-
€4,945 EUR
$5,525 USD
View
B
Retailer 3
-
€5,124 EUR
$5,725 USD
View
B
Retailer 4
-
€6,263 EUR
£5,510 GBP
View
B
Retailer 5
-
€6,311 EUR
$7,051 USD
View
B
Retailer 6
-
€7,640 EUR
$8,535 USD
View
B
Retailer 7
-
€9,833 EUR
View
B
Retailer 8
-
€12,254 EUR
$13,690 USD
View
C
Retailer 9
-
€17,699 EUR
$19,773 USD
View
Most Expensive
B
Brilliant Earth
21026946A · Oct 31
€19,728 EUR
$22,040 USD
View
9 more retailers have this diamond
Prices start from €3,969 EURSave up to €15,759 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.

B+
16.04ct Round
€3,969 EUR