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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 $12,171 NZD
As of November 6, 2026
Save $7,914 NZD (39%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $20,085 NZD 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 $12,171 to $20,085, a $7,914 spread on the same certified stone. MOH London lists it at $20,085. 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: $20,085 NZD|Low: $12,171 NZD|High: $20,247 NZD|Avg: $14,992 NZD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$12,171 NZD
Retailer 5$13,343 NZD
Retailer 4$13,493 NZD
Retailer 2$14,401 NZD
Retailer 3$14,503 NZD
Retailer 6$17,355 NZD
MOH London$20,085 NZD

15 data points across 7 retailers

6 retailers$12,171 NZD to $20,085 NZD

B+
Cheapest Retailer
-
$12,171 NZD
B+
Retailer 2
-
$13,343 NZD
View
B+
Retailer 3
-
$13,493 NZD
View
B
Retailer 4
-
$14,401 NZD
View
B
Retailer 5
-
$14,503 NZD
View
Most Expensive
B
MOH London
FBF6DF01B · Nov 4
$20,085 NZD
£8,767 GBP
View
5 more retailers have this diamond
Prices start from $12,171 NZDSave up to $7,914 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.

B+
1.70ct Marquise
$12,171 NZD