Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

ID • J/SI1 • GIA 1555112868

Certificate GIA 1555112868

Diamond specifications and retailer prices

From $4,921 USD
As of November 2, 2026
Save $3,571 USD (42%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,917 USD 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 1, 2026, with a 73% 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
Color
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 2
Current: $6,031 USD|Low: $4,511 USD|High: $8,594 USD|Avg: $5,955 USD|+2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6$4,921 USD
Retailer 5$5,090 USD
Retailer 2$5,202 USD
Retailer 7$5,375 USD
Retailer 1$6,031 USD
Retailer 4$6,554 USD
Retailer 3$8,492 USD

45 data points across 7 retailers

12 retailers$4,921 USD to $8,492 USD

B+
Cheapest Retailer
-
$4,921 USD
Final sale: no returns
B+
Retailer 2
-
$5,090 USD
View
B+
Retailer 3
-
$5,202 USD
£4,096 GBP
View
Retailer 4
-
$5,332 USD
View
Price last confirmed 25 days ago
Retailer 5
-
$5,332 USD
View
Price last confirmed 25 days ago
Retailer 6
-
$5,332 USD
View
Price last confirmed 32 days ago
Retailer 7
-
$5,375 USD
A$8,269 AUD
View
Price last confirmed 23 days ago
B
Retailer 8
-
$6,031 USD
€5,744 EUR
View
Retailer 9
-
$6,152 USD
View
Price last confirmed 34 days ago
B
Retailer 10
-
$6,554 USD
ZAR 105,874 ZAR
View
B
Retailer 11
-
$8,492 USD
£6,687 GBP
View
Most Expensive
NZ Jewellers
0e69b47c-47ab-4532-8b09-b66fb4f696aa · Sep 30
$8,917 USD
View
Price last confirmed 32 days ago
11 more retailers have this diamond
Prices start from $4,921 USDSave up to $3,571 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 Heart
$4,921 USD