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Marquise|Natural|GIA

1.70ct K SI2 Marquise Natural Diamond

ID • K/SI2 • GIA 1558191222

Certificate GIA 1558191222

Diamond specifications and retailer prices

From $9,820 AUD
As of November 6, 2026
Save $6,385 AUD (39%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $16,205 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.7ct natural marquise diamond

This 1.7ct natural marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558191222. Listed at 6 retailers as of November 4, 2026, with prices from $9,820 to $16,205, a $6,385 spread on the same certified stone. MOH London lists it at $16,205. 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

1.70
Carat
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558191222
Dimensions12.00 × 6.22 × 3.95 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizeNone
Top View
12.00 mm6.22 mm1.70 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558191222
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.5%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $16,205 AUD|Low: $9,820 AUD|High: $16,336 AUD|Avg: $12,096 AUD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$9,820 AUD
Retailer 5$10,766 AUD
Retailer 4$10,886 AUD
Retailer 2$11,618 AUD
Retailer 3$11,701 AUD
Retailer 6$14,002 AUD
MOH London$16,205 AUD

15 data points across 7 retailers

6 retailers$9,820 AUD to $16,205 AUD

B+
Cheapest Retailer
-
$9,820 AUD
B+
Retailer 2
-
$10,766 AUD
View
B+
Retailer 3
-
$10,886 AUD
View
B
Retailer 4
-
$11,618 AUD
View
B
Retailer 5
-
$11,701 AUD
View
Most Expensive
B
MOH London
FBF6DF01B · Nov 4
$16,205 AUD
£8,767 GBP
View
5 more retailers have this diamond
Prices start from $9,820 AUDSave up to $6,385 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+
1.70ct Marquise
$9,820 AUD