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Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

VG • F/SI1 • GIA 6551629134

Certificate GIA 6551629134

Diamond specifications and retailer prices

From $5,353 SGD
HK$32,700 HKD
As of November 2, 2026
Save $6,031 SGD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $13,286 SGD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551629134. Listed at 17 retailers as of November 2, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551629134
Dimensions6.72 × 7.82 × 4.99 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.72 mm7.82 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551629134
Side View
Table 56.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $6,974 SGD|Low: $5,271 SGD|High: $11,700 SGD|Avg: $7,263 SGD|-0.5%
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
Retailer 14
Retailer 15
November 3, 2026
Retailer 11$5,353 SGD
Retailer 15$5,359 SGD
Retailer 14$5,651 SGD
Retailer 13$5,976 SGD
Retailer 4$6,039 SGD
Retailer 3$6,088 SGD
Retailer 8$6,111 SGD
Retailer 6$6,215 SGD
Retailer 10$6,510 SGD
Retailer 1$6,974 SGD
Retailer 7$7,644 SGD
Retailer 2$8,786 SGD
Retailer 12$8,799 SGD
Retailer 5$11,242 SGD
Retailer 9$11,384 SGD

25 data points across 15 retailers

17 retailers$5,353 SGD to $11,384 SGD

A
Cheapest Retailer
-
$5,353 SGD
HK$32,700 HKD
A
Retailer 2
-
$5,359 SGD
$4,190 USD
View
A
Retailer 3
-
$5,651 SGD
$4,419 USD
View
A
Retailer 4
-
$5,976 SGD
$4,673 USD
View
Final sale: no returns
A
Retailer 5
-
$6,039 SGD
$4,722 USD
View
A
Retailer 6
-
$6,088 SGD
$4,760 USD
View
A
Retailer 7
-
$6,111 SGD
€4,551 EUR
View
Retailer 8
-
$6,215 SGD
$4,860 USD
View
Price last confirmed 18 days ago
B+
Retailer 9
-
$6,510 SGD
$5,090 USD
View
B+
Retailer 10
-
$6,974 SGD
£4,293 GBP
View
Retailer 11
-
$7,644 SGD
A$9,195 AUD
View
Price last confirmed 24 days ago
B+
Retailer 12
-
$8,178 SGD
A$9,838 AUD
View
B
Retailer 13
-
$8,786 SGD
ZAR 110,985 ZAR
View
B
Retailer 14
-
$8,799 SGD
$6,880 USD
View
Retailer 15
-
$11,242 SGD
$8,790 USD
View
Price last confirmed 12 days ago
B
Retailer 16
-
$11,384 SGD
£7,009 GBP
View
Most Expensive
NZ Jewellers
5751a6e1-0656-4f28-9314-4eb3e3b90e49 · Sep 25
$13,286 SGD
$10,389 USD
View
Price last confirmed 38 days ago
16 more retailers have this diamond
Prices start from $5,353 SGDSave up to $6,031 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.

A
1.51ct Heart
$5,353 SGD