Heart|Natural|GIA

1.55ct K SI1 Heart Natural Diamond

VG • K/SI1 • GIA 2507568166

Certificate GIA 2507568166

Diamond specifications and retailer prices

From $8,470 SGD
As of November 6, 2026
14 retailers carry this diamond
Most expensive: $9,040 SGD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.55ct natural heart diamond

This 1.55ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2507568166. Listed at 14 retailers as of November 6, 2026. 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

1.55
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2507568166
Dimensions7.88 × 7.21 × 4.17 mm
L/W Ratio1.09
Top View
7.88 mm7.21 mm1.55 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2507568166
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.9%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 6
Current: $8,470 SGD|Low: $4,173 SGD|High: $8,979 SGD|Avg: $5,555 SGD|+41.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 9$4,173 SGD
Retailer 2$4,268 SGD
Retailer 13$4,415 SGD
Retailer 11$4,702 SGD
Retailer 10$4,971 SGD
Retailer 5$4,998 SGD
Retailer 6$5,284 SGD
Retailer 3$5,306 SGD
Retailer 12$5,872 SGD
Retailer 4$6,122 SGD
Retailer 7$6,300 SGD
Retailer 1$8,470 SGD
Retailer 8$8,782 SGD

31 data points across 13 retailers

14 retailers

Retailer 1
-
$4,173 SGD
Price last confirmed 25 days ago
Retailer 2
-
$4,415 SGD
View
Price last confirmed 26 days ago
Retailer 3
-
$4,701 SGD
View
Price last confirmed 29 days ago
Retailer 4
-
$4,701 SGD
View
Price last confirmed 25 days ago
Retailer 5
-
$4,702 SGD
View
Price last confirmed 26 days ago
Retailer 6
-
$4,882 SGD
View
Price last confirmed 36 days ago
Retailer 7
-
$4,971 SGD
View
Price last confirmed 27 days ago
Retailer 8
-
$5,284 SGD
View
Price last confirmed 24 days ago
Retailer 9
-
$5,424 SGD
View
Price last confirmed 28 days ago
Retailer 10
-
$5,872 SGD
View
Price last confirmed 25 days ago
Retailer 11
-
$6,300 SGD
View
Price last confirmed 25 days ago
C
Retailer 12
-
$8,470 SGD
View
Retailer 13
-
$8,782 SGD
View
Price last confirmed 26 days ago
Most Expensive
NZ Jewellers
7fb79610-9bae-4e2e-870b-ea2ab4484357 · Sep 29
$9,040 SGD
$7,054 USD
View
Price last confirmed 37 days ago
13 more retailers have this diamond
Prices start from $8,470 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.

C
1.55ct Heart
$8,470 SGD