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Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

EX • J/SI1

Diamond specifications and retailer prices

From $6,203 SGD
As of November 5, 2026
Save $5,489 SGD (47%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $11,692 SGD at NZ Jewellers · As of November 5, 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. Listed at 17 retailers as of November 5, 2026, with prices from $6,203 to $11,692, a $5,489 spread on the same certified stone. NZ Jewellers lists it at $11,692. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions6.82 × 8.01 × 5.07 mm
L/W Ratio1.17
Top View
6.82 mm8.01 mm1.70 ctJ / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA
Side View
Table 56.0%CrownGirdle: ThinPavilionCuletDepth 63.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $11,692 SGD|Low: $6,203 SGD|High: $11,692 SGD|Avg: $7,176 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$6,203 SGD
Retailer 6$6,334 SGD
Retailer 8$6,334 SGD
Retailer 9$6,334 SGD
Retailer 4$6,491 SGD
Retailer 2$6,690 SGD
Retailer 5$6,972 SGD
Retailer 7$7,308 SGD
NZ Jewellers$11,692 SGD

39 data points across 9 retailers

17 retailers$6,203 SGD to $11,692 SGD

Retailer 1
-
$6,203 SGD
Price last confirmed 8 days ago
B
Retailer 2
-
$6,203 SGD
View
Retailer 3
-
$6,334 SGD
View
Price last confirmed 37 days ago
B
Retailer 4
-
$6,334 SGD
View
Retailer 5
-
$6,334 SGD
View
Price last confirmed 37 days ago
B
Retailer 6
-
$6,334 SGD
View
Retailer 7
-
$6,334 SGD
View
Price last confirmed 9 days ago
Retailer 8
-
$6,491 SGD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$6,491 SGD
View
B
Retailer 10
-
$6,690 SGD
View
Retailer 11
-
$6,972 SGD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$6,972 SGD
View
Retailer 13
-
$7,308 SGD
View
Price last confirmed 62 days ago
B
Retailer 14
-
$7,308 SGD
View
Retailer 15
-
$7,308 SGD
View
Price last confirmed 39 days ago
Retailer 16
-
$11,692 SGD
View
Price last confirmed 38 days ago
Most Expensive
C
NZ Jewellers
4ac71049-29d8-470d-b9d1-413b2e6939f0 · Nov 5
$11,692 SGD
$9,123 USD
View
16 more retailers have this diamond
Prices start from $6,203 SGDSave up to $5,489 SGD

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
$6,203 SGD