CaratHunter
Plans
Round|Lab Grown|IGI

3.70ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG644497177

Shape and cutting style on the report: Round brilliant

Certificate IGI LG644497177

Diamond specifications and retailer prices

From $567 AUD
$398 USD
As of October 29, 2026
Save $1,961 AUD (78%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,528 AUD at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.7ct lab-grown round diamond

This 3.7ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG644497177 or 644497177. Listed at 3 retailers as of October 29, 2026, with prices from $567 to $2,528, a $1,961 spread on the same certified stone. The Diamond Guys lists it at $2,528. 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

3.70
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644497177
Dimensions10.03 × 10.01 × 6.03 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
10.03 mm10.01 mm3.70 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644497177
Side View
Table 59.0%Crown 34°Girdle: MediumPavilion 40.9°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 29
Current: $567 AUD|Low: $431 AUD|High: $7,331 AUD|Avg: $2,022 AUD|-4.1%
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
The Diamond Guys
October 27, 2026
Retailer 1$567 AUD
Retailer 13$669 AUD
Retailer 7$670 AUD
Retailer 10$893 AUD
Retailer 11$1,033 AUD
Retailer 8$1,105 AUD
Retailer 9$1,150 AUD
Retailer 2$1,607 AUD
Retailer 12$1,680 AUD
Retailer 14$1,722 AUD
Retailer 4$1,911 AUD
The Diamond Guys$2,528 AUD
Retailer 6$3,216 AUD
Retailer 5$3,943 AUD
Retailer 3$7,331 AUD

10 data points across 15 retailers

3 retailers$567 AUD to $2,528 AUD

A
Cheapest Retailer
-
$567 AUD
$398 USD
Final sale: no returns
B+
Retailer 2
-
$1,911 AUD
CA$1,865 CAD
View
Most Expensive
B
The Diamond Guys
1954434265 · Oct 30
$2,528 AUD
$1,776 USD
View
2 more retailers have this diamond
Prices start from $567 AUDSave up to $1,961 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
3.70ct Round
$567 AUD