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3.57ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG845654164

Shape and cutting style on the report: Round brilliant

Certificate IGI LG845654164

Diamond specifications and retailer prices

From $919 USD
As of November 1, 2026
Save $2,331 USD (72%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,250 USD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 3.57ct lab-grown round diamond

This 3.57ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG845654164 or 845654164. Listed at 3 retailers as of November 1, 2026, with prices from $919 to $3,250, a $2,331 spread on the same certified stone. Brilliant Earth lists it at $3,250. 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

3.57
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845654164
Dimensions9.79 × 9.76 × 6.02 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.79 mm9.76 mm3.57 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845654164
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°CuletDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $3,250 USD|Low: $919 USD|High: $3,250 USD|Avg: $1,863 USD
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$919 USD
Retailer 2$975 USD
Brilliant Earth$3,250 USD

2 data points across 3 retailers

3 retailers$919 USD to $3,250 USD

B+
Cheapest Retailer
-
$919 USD
A
Retailer 2
-
$975 USD
£768 GBP
View
Most Expensive
B
Brilliant Earth
22390900A · Nov 1
$3,250 USD
View
2 more retailers have this diamond
Prices start from $919 USDSave up to $2,331 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
3.57ct Round
$919 USD