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Marquise|Natural|GIA

1.70ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 6552134900

Certificate GIA 6552134900

Diamond specifications and retailer prices

From $19,035 AUD
£10,504 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: $19,035 AUD at 77 Diamonds
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at 77 Diamonds

About this 1.7ct natural marquise diamond

This 1.7ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552134900. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.70
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.5°
Pavilion angle37.02°
OriginNatural
Grading LabGIA
CertificateGIA 6552134900
Dimensions11.57 × 6.21 × 3.73 mm
L/W Ratio1.86
Top View
11.57 mm6.21 mm1.70 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552134900
Side View
Table 59.0%Crown 40.5°Girdle: STK-VTKPavilion 37.02°Culet: NoneDepth 60.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $19,035 AUD|Low: $16,162 AUD|High: $19,856 AUD|Avg: $17,649 AUD|-2.9%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 4$16,162 AUD
Retailer 3$16,956 AUD
Retailer 2$17,866 AUD
77 Diamonds$19,035 AUD

35 data points across 4 retailers

1 retailer

B
77 Diamonds
MQDHSNBDJFHT · Nov 2
$19,035 AUD
£10,504 GBP
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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
1.70ct Marquise
$19,035 AUD