Heart|Natural|GIA

1.70ct D SI2 Heart Natural Diamond

VG • D/SI2 • GIA 2437900550

Certificate GIA 2437900550

Diamond specifications and retailer prices

From $6,382 USD
As of October 30, 2026
Save $3,859 USD (38%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $11,564 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2437900550. Listed at 7 retailers as of October 29, 2026, with a 60% 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
D
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2437900550
Dimensions8.25 × 6.89 × 5.08 mm
L/W Ratio1.20
Top View
8.25 mm6.89 mm1.70 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2437900550
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.6%

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: Oct 30
Current: $10,241 USD|Low: $5,850 USD|High: $10,309 USD|Avg: $7,609 USD|-0.5%
Retailer 1
Retailer 2
Retailer 3
October 29, 2026
Retailer 3$6,349 USD
Retailer 2$6,382 USD
Retailer 1$10,241 USD

9 data points across 3 retailers

7 retailers$6,382 USD to $10,241 USD

Retailer 1
-
$6,382 USD
Price last confirmed 23 days ago
B+
Retailer 2
-
$6,382 USD
View
Final sale: no returns
Retailer 3
-
$6,914 USD
View
Price last confirmed 23 days ago
Retailer 4
-
$7,020 USD
View
Price last confirmed 30 days ago
Retailer 5
-
$7,978 USD
View
Price last confirmed 32 days ago
B
Retailer 6
-
$10,241 USD
£8,064 GBP
View
Most Expensive
NZ Jewellers
8395e930-3c1d-429f-9994-5643213d5767 · Sep 30
$11,564 USD
View
Price last confirmed 30 days ago
6 more retailers have this diamond
Prices start from $6,382 USDSave up to $3,859 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
$6,382 USD