CaratHunter
Plans
Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

VG • H/SI1 • GIA 5231997262

Certificate GIA 5231997262

Diamond specifications and retailer prices

From $4,873 SGD
$3,810 USD
As of November 1, 2026
Save $5,334 SGD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,367 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 H 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 5231997262. Listed at 18 retailers as of October 27, 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. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231997262
Dimensions6.95 × 7.95 × 4.68 mm
L/W Ratio1.14
Girdle conditionFaceted
Top View
6.95 mm7.95 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231997262
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.8%

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 1
Current: $5,565 SGD|Low: $4,813 SGD|High: $11,329 SGD|Avg: $6,548 SGD|-5.9%
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
Retailer 16
November 2, 2026
Retailer 15$4,873 SGD
Retailer 11$4,878 SGD
Retailer 14$5,154 SGD
Retailer 12$5,341 SGD
Retailer 6$5,463 SGD
Retailer 7$5,474 SGD
Retailer 4$5,492 SGD
Retailer 1$5,565 SGD
Retailer 3$5,800 SGD
Retailer 10$5,883 SGD
Retailer 2$6,125 SGD
Retailer 13$6,353 SGD
Retailer 8$7,223 SGD
Retailer 16$7,852 SGD
Retailer 9$10,174 SGD
Retailer 5$10,207 SGD

25 data points across 16 retailers

18 retailers$4,873 SGD to $10,207 SGD

A
Cheapest Retailer
-
$4,873 SGD
$3,810 USD
A
Retailer 2
-
$4,878 SGD
HK$29,800 HKD
View
A
Retailer 3
-
$5,154 SGD
$4,030 USD
View
A
Retailer 4
-
$5,341 SGD
$4,176 USD
View
Final sale: no returns
A
Retailer 5
-
$5,463 SGD
$4,272 USD
View
A
Retailer 6
-
$5,474 SGD
$4,280 USD
View
A
Retailer 7
-
$5,492 SGD
$4,294 USD
View
A
Retailer 8
-
$5,565 SGD
€4,144 EUR
View
B+
Retailer 9
-
$5,800 SGD
$4,535 USD
View
B+
Retailer 10
-
$5,883 SGD
$4,600 USD
View
B+
Retailer 11
-
$6,125 SGD
$4,789 USD
View
B+
Retailer 12
-
$6,353 SGD
£3,911 GBP
View
Retailer 13
-
$7,223 SGD
A$8,689 AUD
View
Price last confirmed 23 days ago
B
Retailer 14
-
$7,289 SGD
A$8,768 AUD
View
B+
Retailer 15
-
$7,852 SGD
ZAR 99,190 ZAR
View
B
Retailer 16
-
$10,174 SGD
£6,264 GBP
View
B
Retailer 17
-
$10,207 SGD
$7,981 USD
View
Most Expensive
NZ Jewellers
a7f576fe-f550-4bb9-97c3-38e66aeea21e · Sep 25
$12,367 SGD
$9,670 USD
View
Price last confirmed 38 days ago
17 more retailers have this diamond
Prices start from $4,873 SGDSave up to $5,334 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
$4,873 SGD