CaratHunter
Plans
Cushion|Natural|GIA

1.73ct I SI2 Cushion Natural Diamond

ID • I/SI2 • GIA 1427828231

Certificate GIA 1427828231

Diamond specifications and retailer prices

From $3,192 USD
As of November 1, 2026
Save $3,446 USD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,638 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.73ct natural cushion diamond

This 1.73ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1427828231. Listed at 14 retailers as of November 1, 2026, with prices from $3,192 to $6,638, a $3,446 spread on the same certified stone. MOH London lists it at $6,638. 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
I
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle33.5°
OriginNatural
Grading LabGIA
CertificateGIA 1427828231
Dimensions6.76 × 6.48 × 4.46 mm
L/W Ratio1.04
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
6.76 mm6.48 mm1.73 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1427828231
Side View
Table 59.0%Crown 37.9°Girdle: THK-VTKPavilion 33.5°Culet: NoneDepth 68.8%

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: $6,638 USD|Low: $3,062 USD|High: $6,795 USD|Avg: $4,069 USD|-2.3%
MOH London
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
November 1, 2026
Retailer 14$3,192 USD
Retailer 13$3,319 USD
Retailer 9$3,364 USD
Retailer 8$3,596 USD
Retailer 5$3,600 USD
Retailer 10$3,715 USD
Retailer 12$3,833 USD
Retailer 2$3,872 USD
Retailer 3$4,060 USD
Retailer 11$4,060 USD
Retailer 7$4,061 USD
Retailer 4$4,190 USD
Retailer 6$4,494 USD
MOH London$6,638 USD

43 data points across 14 retailers

14 retailers$3,192 USD to $6,638 USD

A
Cheapest Retailer
-
$3,192 USD
A
Retailer 2
-
$3,319 USD
View
Final sale: no returns
A
Retailer 3
-
$3,364 USD
View
Retailer 4
-
$3,596 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$3,600 USD
View
Retailer 6
-
$3,715 USD
View
Price last confirmed 14 days ago
A
Retailer 7
-
$3,833 USD
View
A
Retailer 8
-
$3,872 USD
£3,049 GBP
View
A
Retailer 9
-
$4,060 USD
View
A
Retailer 10
-
$4,060 USD
View
A
Retailer 11
-
$4,061 USD
£3,197 GBP
View
A
Retailer 12
-
$4,190 USD
View
Retailer 13
-
$4,494 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
DC2A5F8F0 · Nov 1
$6,638 USD
£5,227 GBP
View
13 more retailers have this diamond
Prices start from $3,192 USDSave up to $3,446 USD

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 Cushion
$3,192 USD