Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 6435511839

Certificate GIA 6435511839

Diamond specifications and retailer prices

From $3,299 USD
₹314,200 INR
As of October 31, 2026
Save $1,272 USD (28%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,126 USD at MOH London · As of October 25, 2026
View at MOH London

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6435511839. Listed at 6 retailers as of October 31, 2026, with a 39% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle42.16°
Pavilion angle39.78°
OriginNatural
Grading LabGIA
CertificateGIA 6435511839
Dimensions6.82 × 8.11 × 5.00 mm
L/W Ratio1.19
Top View
6.82 mm8.11 mm1.70 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6435511839
Side View
Table 62.0%Crown 42.16°Girdle: THN-VTKPavilion 39.78°Culet: NoneDepth 61.6%

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: Oct 31
Current: $7,126 USD|Low: $3,299 USD|High: $7,600 USD|Avg: $4,828 USD|-5.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3$3,299 USD
Retailer 4$3,605 USD
Retailer 5$3,871 USD
Retailer 2$4,571 USD
Retailer 6$4,753 USD
MOH London$7,126 USD

44 data points across 6 retailers

6 retailers$3,299 USD to $4,571 USD

A
Cheapest Retailer
-
$3,299 USD
₹314,200 INR
A
Retailer 2
-
$3,605 USD
A$5,546 AUD
View
B+
Retailer 3
-
$3,871 USD
View
B+
Retailer 4
-
$4,571 USD
£3,600 GBP
View
Retailer 5
-
$4,753 USD
A$7,313 AUD
View
Price last confirmed 23 days ago
Most Expensive
MOH London
F3F72E178 · Oct 25
$7,126 USD
£5,611 GBP
View
Price last confirmed 8 days ago
5 more retailers have this diamond
Prices start from $3,299 USDSave up to $1,272 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.

A
1.70ct Heart
$3,299 USD