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Marquise|Natural|GIA

1.70ct K SI2 Marquise Natural Diamond

K/SI2

Diamond specifications and retailer prices

From $7,661 USD
As of November 6, 2026
Save $5,737 USD (43%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $13,398 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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) and certified by GIA. Listed at 3 retailers as of November 5, 2026, with prices from $7,661 to $13,398, a $5,737 spread on the same certified stone. NZ Jewellers lists it at $13,398. 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
K
Color
SI2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions12.00 × 6.22 × 3.95 mm
L/W Ratio1.93
Top View
12.00 mm6.22 mm1.70 ctK / SI2
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 59.0%CrownGirdle: MediumPavilionCulet: NoneDepth 63.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $13,398 USD|Low: $7,133 USD|High: $13,398 USD|Avg: $9,284 USD
NZ Jewellers
Retailer 2
Retailer 3
November 3, 2026
Retailer 3$7,661 USD
Retailer 2$8,078 USD
NZ Jewellers$13,398 USD

4 data points across 3 retailers

3 retailers$7,661 USD to $13,398 USD

B
Cheapest Retailer
-
$7,661 USD
C
Retailer 2
-
$8,078 USD
View
Most Expensive
C
NZ Jewellers
365a3105-3c30-41e5-a945-6f2ec40a0c05 · Nov 5
$13,398 USD
View
2 more retailers have this diamond
Prices start from $7,661 USDSave up to $5,737 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.

B
1.70ct Marquise
$7,661 USD