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Oval|Lab Grown|IGI

3.75ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG799697883

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG799697883

Diamond specifications and retailer prices

From $1,959 AUD
$1,373 USD
As of November 2, 2026
Save $3,259 AUD (62%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $12,771 AUD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 LG799697883 or 799697883. Listed at 4 retailers as of October 30, 2026, with a 166% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle34.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799697883
Dimensions12.88 × 8.94 × 5.30 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.88 mm8.94 mm3.75 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799697883
Side View
Table 62.0%Crown 34.7°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.3%

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 2
Current: $12,771 AUD|Low: $1,280 AUD|High: $12,771 AUD|Avg: $3,571 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 27, 2026
Retailer 5$1,280 AUD
Retailer 6$1,398 AUD
Retailer 4$1,959 AUD
Retailer 3$2,627 AUD
Retailer 7$3,829 AUD
Retailer 2$5,218 AUD
Do Amore Diamonds$12,771 AUD

4 data points across 7 retailers

4 retailers$1,959 AUD to $5,218 AUD

A
Cheapest Retailer
-
$1,959 AUD
$1,373 USD
B+
Retailer 2
-
$2,627 AUD
$1,841 USD
View
B
Retailer 3
-
$5,218 AUD
CA$5,079 CAD
View
Most Expensive
Do Amore Diamonds
16-500132585 · Nov 2
$12,771 AUD
$8,950 USD
View
Price under review
3 more retailers have this diamond
Prices start from $1,959 AUDSave up to $3,259 AUD

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
$1,959 AUD