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Round|Lab Grown|IGI

1.71ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG480150359

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480150359

Diamond specifications and retailer prices

From $1,352 AUD
$950 USD
As of October 31, 2026
Save $5,975 AUD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,328 AUD at MOH London · As of October 27, 2026
View at MOH London

About this 1.71ct lab-grown round diamond

This 1.71ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG480150359 or 480150359. Listed at 11 retailers as of October 27, 2026, with prices from $1,352 to $7,328, a $5,975 spread on the same certified stone. MOH London lists it at $7,328. 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

1.71
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480150359
Dimensions7.79 × 7.85 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.79 mm7.85 mm1.71 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG480150359
Side View
Table 59.0%Crown 32.1°Girdle: UNDPavilion 40.4°Culet: NoneDepth 58.7%

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 31
Current: $7,328 AUD|Low: $1,352 AUD|High: $7,416 AUD|Avg: $3,994 AUD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$1,352 AUD
Retailer 4$2,209 AUD
Retailer 7$2,473 AUD
Retailer 5$2,562 AUD
Retailer 8$2,804 AUD
Retailer 9$3,465 AUD
Retailer 6$4,033 AUD
Retailer 3$4,531 AUD
MOH London$7,328 AUD
Retailer 10$7,335 AUD

16 data points across 10 retailers

11 retailers$1,352 AUD to $7,328 AUD

A
Cheapest Retailer
-
$1,352 AUD
$950 USD
B+
Retailer 2
-
$2,209 AUD
$1,552 USD
View
B+
Retailer 3
-
$2,403 AUD
$1,688 USD
View
B+
Retailer 4
-
$2,473 AUD
$1,737 USD
View
Final sale: no returns
Retailer 5
-
$2,562 AUD
$1,800 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$2,562 AUD
$1,800 USD
View
B
Retailer 7
-
$2,804 AUD
$1,970 USD
View
B
Retailer 8
-
$4,033 AUD
$2,833 USD
View
B
Retailer 9
-
$4,531 AUD
$3,183 USD
View
B
Retailer 10
-
$4,803 AUD
$3,374 USD
View
Most Expensive
B
MOH London
LG480150359 · Oct 27
$7,328 AUD
£4,053 GBP
View
10 more retailers have this diamond
Prices start from $1,352 AUDSave up to $5,975 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
1.71ct Round
$1,352 AUD