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Heart|Natural|GIA

1.70ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 6555648690

Certificate GIA 6555648690

Diamond specifications and retailer prices

From $5,316 NZD
As of November 6, 2026
Save $1,940 NZD (27%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,256 NZD at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.7ct natural heart diamond

This 1.7ct natural heart 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 6555648690. Listed at 6 retailers as of November 6, 2026, with prices from $5,316 to $7,256, a $1,940 spread on the same certified stone. GemTrove lists it at $7,256. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555648690
Dimensions7.15 × 8.40 × 5.00 mm
L/W Ratio1.17
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cloud, Cavity, Indented Natural
Top View
7.15 mm8.40 mm1.70 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555648690
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.5%

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 6
Current: $5,334 NZD|Low: $5,100 NZD|High: $6,994 NZD|Avg: $5,845 NZD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4$5,316 NZD
Retailer 1$5,334 NZD
Retailer 3$5,417 NZD
Retailer 2$5,682 NZD
Retailer 5$6,202 NZD

45 data points across 5 retailers

6 retailers$5,316 NZD to $7,256 NZD

A
Cheapest Retailer
-
$5,316 NZD
A
Retailer 2
-
$5,334 NZD
View
A
Retailer 3
-
$5,417 NZD
View
Final sale: no returns
A
Retailer 4
-
$5,682 NZD
View
A
Retailer 5
-
$6,202 NZD
View
Most Expensive
B+
GemTrove
GT-N-01270066-98 · Nov 6
$7,256 NZD
A$6,188 AUD
View
5 more retailers have this diamond
Prices start from $5,316 NZDSave up to $1,940 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.

A
1.70ct Heart
$5,316 NZD