Oval|Lab Grown|GIA

3.66ct F SI1 Oval Lab Grown Diamond

EX • F/SI1

Diamond specifications and retailer prices

From $1,779 USD
£1,400 GBP
As of November 2, 2026
Save $1,646 USD (48%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,424 USD at Diamond Exchange Canada · As of November 2, 2026
View at Diamond Exchange Canada

About this 3.66ct lab-grown oval diamond

This 3.66ct lab-grown oval sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 2 retailers as of November 2, 2026, with prices from $1,779 to $3,424, a $1,646 spread on the same certified stone. Diamond Exchange Canada lists it at $3,424. 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

3.66
Carat
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
Dimensions12.44 × 8.76 × 5.47 mm
L/W Ratio1.42
Top View
12.44 mm8.76 mm3.66 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 58.0%CrownGirdle: THN-THKPavilionCuletDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $3,424 USD|Low: $1,036 USD|High: $3,424 USD|Avg: $1,756 USD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 4$1,036 USD
Retailer 5$1,186 USD
Retailer 3$1,202 USD
Retailer 2$1,779 USD
Diamond Exchange Canada$3,424 USD

41 data points across 5 retailers

2 retailers$1,779 USD to $3,424 USD

B+
Cheapest Retailer
-
$1,779 USD
£1,400 GBP
Most Expensive
B
Diamond Exchange Canada
1986528998 · Nov 2
$3,424 USD
CA$4,756 CAD
View
1 more retailer has this diamond
Prices start from $1,779 USDSave up to $1,646 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+
3.66ct Oval
$1,779 USD