CaratHunter
Plans
Round|Lab Grown|IGI

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 $4,434 USD
£3,491 GBP
As of November 1, 2026
Save $17,606 USD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $22,040 USD 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 $4,434 to $22,040, a $17,606 spread on the same certified stone. Brilliant Earth lists it at $22,040. 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: $22,040 USD|Low: $2,650 USD|High: $22,220 USD|Avg: $9,273 USD|+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$4,434 USD
Retailer 5$5,525 USD
Retailer 8$5,725 USD
Retailer 2$6,997 USD
Retailer 6$7,051 USD
Retailer 9$8,535 USD
Retailer 4$10,985 USD
Retailer 7$13,690 USD
Retailer 10$19,773 USD
Brilliant Earth$22,040 USD

39 data points across 10 retailers

10 retailers$4,434 USD to $22,040 USD

B+
Cheapest Retailer
-
$4,434 USD
£3,491 GBP
B+
Retailer 2
-
$5,525 USD
View
B
Retailer 3
-
$5,725 USD
View
B
Retailer 4
-
$6,997 USD
£5,510 GBP
View
B
Retailer 5
-
$7,051 USD
View
B
Retailer 6
-
$8,535 USD
View
B
Retailer 7
-
$10,985 USD
€10,462 EUR
View
B
Retailer 8
-
$13,690 USD
View
C
Retailer 9
-
$19,773 USD
View
Most Expensive
B
Brilliant Earth
21026946A · Oct 31
$22,040 USD
View
9 more retailers have this diamond
Prices start from $4,434 USDSave up to $17,606 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.

B+
16.04ct Round
$4,434 USD