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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 $685 NZD
$386 USD
As of October 29, 2026
Save $2,776 NZD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,039 NZD at Do Amore Diamonds · As of October 31, 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: $5,039 NZD|Low: $685 NZD|High: $6,317 NZD|Avg: $2,086 NZD|-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$685 NZD
Retailer 12$766 NZD
Retailer 7$797 NZD
Retailer 4$850 NZD
Retailer 11$850 NZD
Retailer 5$1,098 NZD
Retailer 10$1,109 NZD
Retailer 8$1,397 NZD
Retailer 2$1,405 NZD
Retailer 15$1,432 NZD
Retailer 6$1,801 NZD
Retailer 14$2,715 NZD
Retailer 3$3,013 NZD
Retailer 9$3,461 NZD
Do Amore Diamonds$5,039 NZD

43 data points across 15 retailers

16 retailers$685 NZD to $3,461 NZD

Retailer 1
-
$685 NZD
$386 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$685 NZD
$386 USD
View
Retailer 3
-
$766 NZD
$432 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$797 NZD
$449 USD
View
Final sale: no returns
A
Retailer 5
-
$850 NZD
$479 USD
View
Retailer 6
-
$850 NZD
$479 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$1,098 NZD
$619 USD
View
A
Retailer 8
-
$1,109 NZD
$625 USD
View
B+
Retailer 9
-
$1,397 NZD
€750 EUR
View
B+
Retailer 10
-
$1,405 NZD
£624 GBP
View
B+
Retailer 11
-
$1,432 NZD
$807 USD
View
Retailer 12
-
$1,801 NZD
$1,015 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
$2,715 NZD
$1,530 USD
View
B
Retailer 14
-
$3,013 NZD
$1,698 USD
View
B
Retailer 15
-
$3,461 NZD
£1,536 GBP
View
Most Expensive
Do Amore Diamonds
34-DB103-108 · Oct 31
$5,039 NZD
$2,840 USD
View
Price under review
15 more retailers have this diamond
Prices start from $685 NZDSave up to $2,776 NZD

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
$685 NZD