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Round|Lab Grown|GIA

1.73ct I SI1 Round Lab Grown Diamond

VG • I/SI1 • GIA 1507868965

Certificate GIA 1507868965

Diamond specifications and retailer prices

From $733 AUD
$515 USD
As of October 30, 2026
Save $1,212 AUD (62%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,945 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.73ct lab-grown round diamond

This 1.73ct 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 very-good cut grade and certified by GIA 1507868965. Listed at 2 retailers as of October 29, 2026, with prices from $733 to $1,945, a $1,212 spread on the same certified stone. MOH London lists it at $1,945. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.73
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41°
OriginLab Grown
Grading LabGIA
CertificateGIA 1507868965
Dimensions7.60 × 7.65 × 4.72 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
7.60 mm7.65 mm1.73 ctI / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1507868965
Side View
Table 58.0%Crown 32.5°Girdle: STK-THKPavilion 41°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,945 AUD|Low: $733 AUD|High: $2,256 AUD|Avg: $1,322 AUD|-13.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 2$733 AUD
Retailer 7$868 AUD
Retailer 4$1,088 AUD
Retailer 5$1,142 AUD
Retailer 3$1,448 AUD
Retailer 6$1,862 AUD
MOH London$1,945 AUD

10 data points across 7 retailers

2 retailers$733 AUD to $1,945 AUD

B+
Cheapest Retailer
-
$733 AUD
$515 USD
Most Expensive
B+
MOH London
1507868965 · Oct 29
$1,945 AUD
£1,076 GBP
View
1 more retailer has this diamond
Prices start from $733 AUDSave up to $1,212 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.

B+
1.73ct Round
$733 AUD