CaratHunter
Plans
Round|Lab Grown|IGI

3.71ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG628436131

Shape and cutting style on the report: Round brilliant

Certificate IGI LG628436131

Diamond specifications and retailer prices

From $592 AUD
$416 USD
As of October 26, 2026
Save $4,661 AUD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,513 AUD at Jared · As of October 28, 2026
View at Jared

About this 3.71ct lab-grown round diamond

This 3.71ct 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 LG628436131 or 628436131. Listed at 12 retailers as of October 26, 2026, with a 787% 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

3.71
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628436131
Dimensions9.93 × 9.97 × 5.99 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
9.93 mm9.97 mm3.71 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628436131
Side View
Table 58.0%Crown 32.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $2,994 AUD|Low: $485 AUD|High: $5,381 AUD|Avg: $2,139 AUD|-1.8%
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$592 AUD
Retailer 8$663 AUD
Retailer 2$679 AUD
Retailer 9$1,129 AUD
Retailer 7$1,160 AUD
Retailer 12$1,160 AUD
Retailer 5$1,391 AUD
Retailer 6$1,495 AUD
Retailer 4$1,557 AUD
Retailer 10$2,060 AUD
Retailer 11$2,607 AUD
Retailer 1$2,994 AUD
Retailer 3$4,997 AUD
Retailer 13$5,253 AUD

33 data points across 14 retailers

12 retailers$592 AUD to $5,253 AUD

A
Cheapest Retailer
-
$592 AUD
$416 USD
A
Retailer 2
-
$663 AUD
$466 USD
View
A
Retailer 3
-
$679 AUD
$477 USD
View
Final sale: no returns
Retailer 4
-
$1,129 AUD
£624 GBP
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$1,160 AUD
$815 USD
View
A
Retailer 6
-
$1,160 AUD
$815 USD
View
B+
Retailer 7
-
$2,060 AUD
$1,447 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$2,607 AUD
$1,831 USD
View
B
Retailer 9
-
$2,994 AUD
£1,656 GBP
View
B
Retailer 10
-
$4,997 AUD
$3,510 USD
View
B
Retailer 11
-
$5,253 AUD
$3,690 USD
View
Most Expensive
Jared
150918726 · Oct 28
$8,513 AUD
$5,980 USD
View
Price under review
11 more retailers have this diamond
Prices start from $592 AUDSave up to $4,661 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
3.71ct Round
$592 AUD