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Heart|Natural|GIA

1.70ct D SI2 Heart Natural Diamond

ID • D/SI2 • GIA 48

Certificate GIA 48

Diamond specifications and retailer prices

From HK$64,335 HKD
$8,200 USD
As of October 31, 2026
Save HK$16,955 HKD (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: HK$81,289 HKD at Blue Nile · As of October 31, 2026
View at Blue Nile

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of October 31, 2026, with prices from HK$64,335 to HK$81,289, a HK$16,955 spread on the same certified stone. Blue Nile lists it at HK$81,289. 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
D
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 48
Dimensions7.39 × 8.15 × 4.72 mm
L/W Ratio1.10
Top View
7.39 mm8.15 mm1.70 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 48
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$81,289 HKD|Low: HK$64,335 HKD|High: HK$81,289 HKD|Avg: HK$70,221 HKD
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2HK$64,335 HKD
Retailer 3HK$70,574 HKD
Blue NileHK$81,289 HKD

2 data points across 3 retailers

3 retailersHK$64,335 HKD to HK$81,289 HKD

B+
Cheapest Retailer
-
HK$64,335 HKD
$8,200 USD
B+
Retailer 2
-
HK$70,574 HKD
$8,995 USD
View
Most Expensive
B
Blue Nile
27176014 · Oct 31
HK$81,289 HKD
$10,361 USD
View
2 more retailers have this diamond
Prices start from HK$64,335 HKDSave up to HK$16,955 HKD

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
HK$64,335 HKD