CaratHunter
Plans
Round|Lab Grown|IGI

1.70ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG737547741

Shape and cutting style on the report: Round brilliant

Certificate IGI LG737547741

Diamond specifications and retailer prices

From $297 AUD
$208 USD
As of November 1, 2026
Save $1,601 AUD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,898 AUD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 1.7ct lab-grown round diamond

This 1.7ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG737547741 or 737547741. Listed at 17 retailers as of November 1, 2026, with prices from $297 to $1,898, a $1,601 spread on the same certified stone. Brilliant Earth lists it at $1,898. 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

1.70
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG737547741
Dimensions7.70 × 7.72 × 4.62 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
7.70 mm7.72 mm1.70 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG737547741
Side View
Table 60.0%Crown 33.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.0%

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: Nov 1
Current: $1,898 AUD|Low: $288 AUD|High: $2,411 AUD|Avg: $814 AUD|-21.3%
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
Retailer 17
November 3, 2026
Retailer 7$297 AUD
Retailer 4$331 AUD
Retailer 13$344 AUD
Retailer 3$367 AUD
Retailer 12$367 AUD
Retailer 9$420 AUD
Retailer 6$497 AUD
Retailer 2$675 AUD
Retailer 15$742 AUD
Retailer 16$743 AUD
Retailer 10$776 AUD
Retailer 17$1,180 AUD
Retailer 8$1,184 AUD
Retailer 14$1,184 AUD
Retailer 5$1,256 AUD
Retailer 11$1,471 AUD
Brilliant Earth$1,898 AUD

46 data points across 17 retailers

17 retailers$297 AUD to $1,898 AUD

A
Cheapest Retailer
-
$297 AUD
$208 USD
A
Retailer 2
-
$331 AUD
$232 USD
View
Final sale: no returns
A
Retailer 3
-
$344 AUD
$241 USD
View
Retailer 4
-
$367 AUD
$257 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$367 AUD
$257 USD
View
A
Retailer 6
-
$420 AUD
HK$2,300 HKD
View
B+
Retailer 7
-
$497 AUD
$348 USD
View
A
Retailer 8
-
$675 AUD
£373 GBP
View
A
Retailer 9
-
$742 AUD
$520 USD
View
A
Retailer 10
-
$743 AUD
$521 USD
View
A
Retailer 11
-
$776 AUD
€518 EUR
View
B
Retailer 12
-
$1,180 AUD
$827 USD
View
Retailer 13
-
$1,184 AUD
$830 USD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$1,184 AUD
$830 USD
View
B+
Retailer 15
-
$1,256 AUD
$881 USD
View
B
Retailer 16
-
$1,471 AUD
£812 GBP
View
Most Expensive
B
Brilliant Earth
16145445A · Nov 1
$1,898 AUD
$1,330 USD
View
16 more retailers have this diamond
Prices start from $297 AUDSave up to $1,601 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
1.70ct Round
$297 AUD