Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

ID • J/SI1 • GIA 1555112868

Certificate GIA 1555112868

Diamond specifications and retailer prices

From $8,877 NZD
As of November 6, 2026
Save $6,400 NZD (42%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $16,085 NZD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.7ct natural heart diamond

This 1.7ct natural heart sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555112868. Listed at 12 retailers as of November 4, 2026, with a 72% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555112868
Dimensions8.30 × 6.99 × 5.09 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Natural
Top View
8.30 mm6.99 mm1.70 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1555112868
Side View
Table 56.0%CrownGirdlePavilionCulet: NoneDepth 61.3%

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: $10,820 NZD|Low: $8,137 NZD|High: $15,503 NZD|Avg: $10,763 NZD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$8,877 NZD
Retailer 5$9,182 NZD
Retailer 2$9,236 NZD
Retailer 7$9,694 NZD
Retailer 1$10,820 NZD
Retailer 3$11,734 NZD
Retailer 4$15,277 NZD

45 data points across 7 retailers

12 retailers$8,877 NZD to $15,277 NZD

B+
Cheapest Retailer
-
$8,877 NZD
Final sale: no returns
B+
Retailer 2
-
$9,182 NZD
View
B+
Retailer 3
-
$9,236 NZD
View
Retailer 4
-
$9,618 NZD
View
Price last confirmed 30 days ago
Retailer 5
-
$9,618 NZD
View
Price last confirmed 30 days ago
Retailer 6
-
$9,618 NZD
View
Price last confirmed 37 days ago
Retailer 7
-
$9,694 NZD
View
Price last confirmed 29 days ago
B
Retailer 8
-
$10,820 NZD
View
Retailer 9
-
$11,098 NZD
View
Price last confirmed 39 days ago
B
Retailer 10
-
$11,734 NZD
View
B
Retailer 11
-
$15,277 NZD
View
Most Expensive
NZ Jewellers
0e69b47c-47ab-4532-8b09-b66fb4f696aa · Sep 30
$16,085 NZD
$8,917 USD
View
Price last confirmed 37 days ago
11 more retailers have this diamond
Prices start from $8,877 NZDSave up to $6,400 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 Heart
$8,877 NZD