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Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 6431422487

Certificate GIA 6431422487

Diamond specifications and retailer prices

From $5,297 SGD
As of November 6, 2026
Save $5,671 SGD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,968 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6431422487. Listed at 18 retailers as of November 5, 2026, with prices from $5,297 to $10,968, a $5,671 spread on the same certified stone. NZ Jewellers lists it at $10,968. 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
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle40.7°
Pavilion angle41.9°
OriginNatural
Grading LabGIA
CertificateGIA 6431422487
Dimensions8.06 × 7.23 × 4.33 mm
L/W Ratio1.11
Top View
8.06 mm7.23 mm1.70 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6431422487
Side View
Table 56.0%Crown 40.7°Girdle: STK-ETKPavilion 41.9°Culet: NoneDepth 59.9%

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: Nov 6
Current: $10,968 SGD|Low: $5,271 SGD|High: $10,968 SGD|Avg: $6,694 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
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 3$5,297 SGD
Retailer 13$5,301 SGD
Retailer 10$5,490 SGD
Retailer 5$5,811 SGD
Retailer 4$5,927 SGD
Retailer 2$6,024 SGD
Retailer 11$6,199 SGD
Retailer 16$6,295 SGD
Retailer 17$6,295 SGD
Retailer 18$6,295 SGD
Retailer 6$6,346 SGD
Retailer 7$6,431 SGD
Retailer 9$6,489 SGD
Retailer 8$6,652 SGD
Retailer 15$7,264 SGD
Retailer 12$7,681 SGD
Retailer 14$9,999 SGD
NZ Jewellers$10,968 SGD

32 data points across 18 retailers

18 retailers$5,297 SGD to $10,968 SGD

B+
Cheapest Retailer
-
$5,297 SGD
B+
Retailer 2
-
$5,301 SGD
View
B+
Retailer 3
-
$5,490 SGD
View
B+
Retailer 4
-
$5,811 SGD
View
Final sale: no returns
B+
Retailer 5
-
$5,927 SGD
View
B+
Retailer 6
-
$6,024 SGD
View
B+
Retailer 7
-
$6,199 SGD
View
B
Retailer 8
-
$6,295 SGD
View
B
Retailer 9
-
$6,295 SGD
View
Retailer 10
-
$6,295 SGD
View
Price last confirmed 13 days ago
Retailer 11
-
$6,346 SGD
View
Price last confirmed 29 days ago
B
Retailer 12
-
$6,431 SGD
View
B
Retailer 13
-
$6,489 SGD
View
B
Retailer 14
-
$6,652 SGD
View
B
Retailer 15
-
$7,264 SGD
View
B
Retailer 16
-
$7,681 SGD
View
B
Retailer 17
-
$9,999 SGD
View
Most Expensive
C
NZ Jewellers
9be0e4a2-93b6-416f-97c9-bfaaaf15adb7 · Nov 5
$10,968 SGD
$8,558 USD
View
17 more retailers have this diamond
Prices start from $5,297 SGDSave up to $5,671 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
$5,297 SGD