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Round|Lab Grown|IGI

3.68ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG652421218

Shape and cutting style on the report: Round brilliant

Certificate IGI LG652421218

Diamond specifications and retailer prices

From $588 AUD
$413 USD
As of October 26, 2026
Save $4,637 AUD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,200 AUD at Jared · As of October 28, 2026
View at Jared

About this 3.68ct lab-grown round diamond

This 3.68ct lab-grown round 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 LG652421218 or 652421218. Listed at 12 retailers as of October 26, 2026, with a 789% 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

3.68
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG652421218
Dimensions9.86 × 9.90 × 6.07 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.86 mm9.90 mm3.68 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG652421218
Side View
Table 59.0%Crown 34.7°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.5%

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: Oct 26
Current: $2,970 AUD|Low: $481 AUD|High: $5,353 AUD|Avg: $2,121 AUD|-1.9%
Retailer 1
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
October 29, 2026
Retailer 14$588 AUD
Retailer 8$658 AUD
Retailer 2$675 AUD
Retailer 9$1,120 AUD
Retailer 12$1,150 AUD
Retailer 7$1,153 AUD
Retailer 4$1,380 AUD
Retailer 5$1,486 AUD
Retailer 3$1,533 AUD
Retailer 10$2,044 AUD
Retailer 11$2,587 AUD
Retailer 1$2,970 AUD
Retailer 6$4,954 AUD
Retailer 13$5,225 AUD

34 data points across 14 retailers

12 retailers$588 AUD to $5,225 AUD

A
Cheapest Retailer
-
$588 AUD
$413 USD
A
Retailer 2
-
$658 AUD
$462 USD
View
A
Retailer 3
-
$675 AUD
$474 USD
View
Final sale: no returns
Retailer 4
-
$1,120 AUD
£620 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$1,150 AUD
$808 USD
View
A
Retailer 6
-
$1,153 AUD
$810 USD
View
Retailer 7
-
$2,044 AUD
$1,436 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$2,587 AUD
$1,817 USD
View
B+
Retailer 9
-
$2,970 AUD
£1,643 GBP
View
B
Retailer 10
-
$4,954 AUD
$3,480 USD
View
B
Retailer 11
-
$5,225 AUD
$3,670 USD
View
Most Expensive
Jared
152540144 · Oct 28
$8,200 AUD
$5,760 USD
View
Price under review
11 more retailers have this diamond
Prices start from $588 AUDSave up to $4,637 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
3.68ct Round
$588 AUD