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Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

GD • H/SI1 • GIA 1557134574

Certificate GIA 1557134574

Diamond specifications and retailer prices

From $6,083 SGD
$4,757 USD
As of November 2, 2026
Save $9,355 SGD (61%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $15,438 SGD at NZ Jewellers · As of November 3, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1557134574. Listed at 16 retailers as of November 2, 2026, with prices from $6,083 to $15,438, a $9,355 spread on the same certified stone. NZ Jewellers lists it at $15,438. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557134574
Dimensions6.90 × 8.14 × 4.83 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
6.90 mm8.14 mm1.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1557134574
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 59.4%

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 2
Current: $15,438 SGD|Low: $4,999 SGD|High: $15,438 SGD|Avg: $7,960 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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 3, 2026
Retailer 15$4,999 SGD
Retailer 14$5,036 SGD
Retailer 21$6,083 SGD
Retailer 8$6,186 SGD
Retailer 11$6,636 SGD
Retailer 10$7,060 SGD
Retailer 12$7,060 SGD
Retailer 20$7,292 SGD
Retailer 9$7,303 SGD
Retailer 22$7,387 SGD
Retailer 18$7,718 SGD
Retailer 6$7,763 SGD
Retailer 7$7,783 SGD
Retailer 19$8,361 SGD
Retailer 2$8,851 SGD
Retailer 17$8,959 SGD
Retailer 4$9,648 SGD
Retailer 5$10,172 SGD
Retailer 3$10,254 SGD
Retailer 16$11,340 SGD
Retailer 13$12,864 SGD
NZ Jewellers$15,438 SGD

41 data points across 22 retailers

16 retailers$6,083 SGD to $15,438 SGD

B+
Cheapest Retailer
-
$6,083 SGD
$4,757 USD
Retailer 2
-
$6,186 SGD
View
Price last confirmed 26 days ago
B
Retailer 3
-
$7,292 SGD
$5,702 USD
View
B
Retailer 4
-
$7,387 SGD
$5,776 USD
View
B
Retailer 5
-
$7,718 SGD
$6,035 USD
View
B
Retailer 6
-
$7,763 SGD
$6,070 USD
View
B
Retailer 7
-
$7,783 SGD
$6,086 USD
View
B
Retailer 8
-
$8,361 SGD
$6,538 USD
View
B
Retailer 9
-
$8,851 SGD
£5,450 GBP
View
Retailer 10
-
$8,959 SGD
A$10,777 AUD
View
Price last confirmed 12 days ago
B
Retailer 11
-
$9,156 SGD
$7,159 USD
View
B
Retailer 12
-
$9,648 SGD
$7,544 USD
View
B
Retailer 13
-
$10,254 SGD
$8,018 USD
View
B
Retailer 14
-
$11,340 SGD
ZAR 143,251 ZAR
View
B
Retailer 15
-
$12,864 SGD
£7,920 GBP
View
Most Expensive
C
NZ Jewellers
18bf8836-719f-4766-94cd-708c02634024 · Nov 3
$15,438 SGD
$12,071 USD
View
15 more retailers have this diamond
Prices start from $6,083 SGDSave up to $9,355 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+
1.51ct Heart
$6,083 SGD