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Heart|Natural|GIA

1.70ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 7553818623

Certificate GIA 7553818623

Diamond specifications and retailer prices

From £5,853 GBP
$7,834 USD
As of November 5, 2026
6 retailers carry this diamond
Most expensive: £5,853 GBP at NZ Jewellers
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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7553818623. Listed at 6 retailers as of November 5, 2026. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7553818623
Dimensions8.05 × 7.34 × 4.83 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Needle
Top View
8.05 mm7.34 mm1.70 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7553818623
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: £5,853 GBP|Low: £3,343 GBP|High: £5,853 GBP|Avg: £4,034 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6£3,360 GBP
Retailer 8£3,360 GBP
Retailer 9£3,360 GBP
Retailer 2£3,384 GBP
Retailer 3£3,410 GBP
Retailer 4£3,774 GBP
Retailer 7£3,876 GBP
Retailer 5£5,379 GBP
NZ Jewellers£5,853 GBP

28 data points across 9 retailers

6 retailers

Retailer 1
-
£3,360 GBP
Price last confirmed 21 days ago
Retailer 2
-
£3,360 GBP
View
Price last confirmed 19 days ago
Retailer 3
-
£3,360 GBP
View
Price last confirmed 21 days ago
Retailer 4
-
£3,876 GBP
View
Price last confirmed 18 days ago
Retailer 5
-
£5,379 GBP
View
Price last confirmed 18 days ago
Most Expensive
B
NZ Jewellers
2962f15d-abba-4e2b-ba0f-391a9ed4eae1 · Nov 5
£5,853 GBP
$7,834 USD
View
5 more retailers have this diamond

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
£5,853 GBP