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Oval|Lab Grown|IGI

3.75ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG623481348

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG623481348

Diamond specifications and retailer prices

From $520 SGD
$407 USD
As of November 1, 2026
Save $3,340 SGD (87%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,861 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.75ct lab-grown oval diamond

This 3.75ct 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 and certified by IGI LG623481348 or 623481348. Listed at 16 retailers as of October 31, 2026, with prices from $520 to $3,861, a $3,340 spread on the same certified stone. Brilliant Earth lists it at $3,861. 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

3.75
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623481348
Dimensions13.04 × 8.67 × 5.40 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
13.04 mm8.67 mm3.75 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623481348
Side View
Table 61.0%Crown 35.3°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

Caratlytics Score

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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: $3,861 SGD|Low: $500 SGD|High: $4,308 SGD|Avg: $1,474 SGD|-10.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 5$520 SGD
Retailer 12$583 SGD
Retailer 3$646 SGD
Retailer 16$646 SGD
Retailer 15$794 SGD
Retailer 11$831 SGD
Retailer 6$1,019 SGD
Retailer 9$1,060 SGD
Retailer 10$1,091 SGD
Retailer 7$1,165 SGD
Retailer 13$1,809 SGD
Retailer 8$1,838 SGD
Retailer 4$2,074 SGD
Retailer 2$2,520 SGD
Retailer 14$2,915 SGD
Brilliant Earth$3,861 SGD

38 data points across 16 retailers

16 retailers$520 SGD to $3,861 SGD

A
Cheapest Retailer
-
$520 SGD
$407 USD
A
Retailer 2
-
$583 SGD
$456 USD
View
A
Retailer 3
-
$646 SGD
$505 USD
View
Retailer 4
-
$646 SGD
$505 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$794 SGD
£489 GBP
View
Price last confirmed 16 days ago
A
Retailer 6
-
$831 SGD
$650 USD
View
B+
Retailer 7
-
$1,019 SGD
$797 USD
View
A
Retailer 8
-
$1,060 SGD
£653 GBP
View
A
Retailer 9
-
$1,091 SGD
€813 EUR
View
A
Retailer 10
-
$1,165 SGD
$911 USD
View
B+
Retailer 11
-
$1,809 SGD
$1,415 USD
View
B+
Retailer 12
-
$1,838 SGD
$1,438 USD
View
B+
Retailer 13
-
$2,074 SGD
$1,622 USD
View
B+
Retailer 14
-
$2,520 SGD
£1,552 GBP
View
B
Retailer 15
-
$2,915 SGD
$2,280 USD
View
Most Expensive
B
Brilliant Earth
9368755A · Oct 31
$3,861 SGD
$3,020 USD
View
15 more retailers have this diamond
Prices start from $520 SGDSave up to $3,340 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.

A
3.75ct Oval
$520 SGD