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Oval|Lab Grown|GIA

3.66ct F SI1 Oval Lab Grown Diamond

EX • F/SI1

Diamond specifications and retailer prices

From $2,275 SGD
£1,400 GBP
As of November 2, 2026
Save $2,105 SGD (48%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $4,379 SGD 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 $2,275 to $4,379, a $2,105 spread on the same certified stone. Diamond Exchange Canada lists it at $4,379. 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
Colour
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: $4,379 SGD|Low: $1,325 SGD|High: $4,379 SGD|Avg: $2,246 SGD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 4$1,325 SGD
Retailer 5$1,517 SGD
Retailer 3$1,537 SGD
Retailer 2$2,275 SGD
Diamond Exchange Canada$4,379 SGD

41 data points across 5 retailers

2 retailers$2,275 SGD to $4,379 SGD

B+
Cheapest Retailer
-
$2,275 SGD
£1,400 GBP
Most Expensive
B
Diamond Exchange Canada
1986528998 · Nov 2
$4,379 SGD
CA$4,756 CAD
View
1 more retailer has this diamond
Prices start from $2,275 SGDSave up to $2,105 SGD

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
$2,275 SGD