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Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 7548576551

Certificate GIA 7548576551

Diamond specifications and retailer prices

From $5,496 SGD
As of November 6, 2026
Save $6,011 SGD (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,179 SGD at NZ Jewellers · As of October 18, 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 7548576551. Listed at 20 retailers as of November 4, 2026, with a 109% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7548576551
Dimensions7.11 × 8.08 × 4.98 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Feather, Crystal, Needle
Top View
7.11 mm8.08 mm1.70 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7548576551
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.7%

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: Nov 6
Current: $12,179 SGD|Low: $5,462 SGD|High: $12,179 SGD|Avg: $7,782 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 14$5,496 SGD
Retailer 2$5,783 SGD
Retailer 11$6,525 SGD
Retailer 3$6,685 SGD
Retailer 8$6,932 SGD
Retailer 9$6,955 SGD
Retailer 13$7,215 SGD
Retailer 5$7,282 SGD
Retailer 7$7,282 SGD
Retailer 4$7,320 SGD
Retailer 15$7,441 SGD
Retailer 6$8,402 SGD
Retailer 10$8,838 SGD
Retailer 12$11,506 SGD
NZ Jewellers$12,179 SGD

27 data points across 15 retailers

20 retailers$5,496 SGD to $11,506 SGD

B+
Cheapest Retailer
-
$5,496 SGD
B+
Retailer 2
-
$5,783 SGD
View
B+
Retailer 3
-
$6,525 SGD
View
B+
Retailer 4
-
$6,685 SGD
View
Final sale: no returns
B
Retailer 5
-
$6,746 SGD
View
B
Retailer 6
-
$6,748 SGD
View
B+
Retailer 7
-
$6,932 SGD
View
B+
Retailer 8
-
$6,955 SGD
View
Retailer 9
-
$7,017 SGD
View
Price last confirmed 23 days ago
B+
Retailer 10
-
$7,071 SGD
View
B+
Retailer 11
-
$7,215 SGD
View
Retailer 12
-
$7,282 SGD
View
Price last confirmed 22 days ago
Retailer 13
-
$7,282 SGD
View
Price last confirmed 20 days ago
Retailer 14
-
$7,282 SGD
View
Price last confirmed 22 days ago
Retailer 15
-
$7,320 SGD
View
Price last confirmed 20 days ago
B
Retailer 16
-
$7,441 SGD
View
Retailer 17
-
$8,402 SGD
View
Price last confirmed 19 days ago
B
Retailer 18
-
$8,838 SGD
View
B
Retailer 19
-
$11,506 SGD
View
Most Expensive
NZ Jewellers
2342f5bb-d5f6-4248-bb12-cf09a4a2d8d1 · Oct 18
$12,179 SGD
$9,503 USD
View
Price last confirmed 19 days ago
19 more retailers have this diamond
Prices start from $5,496 SGDSave up to $6,011 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
$5,496 SGD