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Round|Lab Grown|GIA

1.73ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • GIA 3475370229

Certificate GIA 3475370229

Diamond specifications and retailer prices

From $550 AUD
$386 USD
As of October 29, 2026
Save $2,228 AUD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,043 AUD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3475370229. Listed at 16 retailers as of October 29, 2026, with a 405% 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

1.73
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 3475370229
Dimensions7.68 × 7.65 × 4.78 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.68 mm7.65 mm1.73 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3475370229
Side View
Table 57.0%Crown 36°Girdle: MED-MEDPavilion 40.8°Culet: NoneDepth 62.4%

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: $4,043 AUD|Low: $550 AUD|High: $5,068 AUD|Avg: $1,674 AUD|-20.2%
Do Amore Diamonds
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
October 30, 2026
Retailer 13$550 AUD
Retailer 12$615 AUD
Retailer 7$639 AUD
Retailer 4$682 AUD
Retailer 11$682 AUD
Retailer 5$881 AUD
Retailer 10$890 AUD
Retailer 8$1,121 AUD
Retailer 2$1,127 AUD
Retailer 15$1,149 AUD
Retailer 6$1,445 AUD
Retailer 14$2,178 AUD
Retailer 3$2,417 AUD
Retailer 9$2,777 AUD
Do Amore Diamonds$4,043 AUD

43 data points across 15 retailers

16 retailers$550 AUD to $2,777 AUD

Retailer 1
-
$550 AUD
$386 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$550 AUD
$386 USD
View
Retailer 3
-
$615 AUD
$432 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$639 AUD
$449 USD
View
Final sale: no returns
A
Retailer 5
-
$682 AUD
$479 USD
View
Retailer 6
-
$682 AUD
$479 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$881 AUD
$619 USD
View
A
Retailer 8
-
$890 AUD
$625 USD
View
B+
Retailer 9
-
$1,121 AUD
€750 EUR
View
B+
Retailer 10
-
$1,127 AUD
£624 GBP
View
B+
Retailer 11
-
$1,149 AUD
$807 USD
View
Retailer 12
-
$1,445 AUD
$1,015 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
$2,178 AUD
$1,530 USD
View
B
Retailer 14
-
$2,417 AUD
$1,698 USD
View
B
Retailer 15
-
$2,777 AUD
£1,536 GBP
View
Most Expensive
Do Amore Diamonds
34-DB103-108 · Oct 30
$4,043 AUD
$2,840 USD
View
Price under review
15 more retailers have this diamond
Prices start from $550 AUDSave up to $2,228 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
1.73ct Round
$550 AUD