Heart|Natural|GIA

1.51ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 2554044527

Certificate GIA 2554044527

Diamond specifications and retailer prices

From $3,008 USD
HK$23,500 HKD
As of November 1, 2026
Save $3,679 USD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,360 USD 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554044527. Listed at 13 retailers as of November 1, 2026, with a 122% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554044527
Dimensions6.99 × 7.94 × 4.59 mm
L/W Ratio1.14
Top View
6.99 mm7.94 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554044527
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.8%

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: $3,220 USD|Low: $3,008 USD|High: $7,150 USD|Avg: $4,352 USD|-9.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 7$3,008 USD
Retailer 3$3,059 USD
Retailer 1$3,220 USD
Retailer 12$3,290 USD
Retailer 11$3,343 USD
Retailer 6$3,602 USD
Retailer 5$3,680 USD
Retailer 10$3,816 USD
Retailer 4$4,510 USD
Retailer 8$5,200 USD
Retailer 2$6,372 USD
Retailer 9$6,687 USD

34 data points across 12 retailers

13 retailers$3,008 USD to $6,687 USD

A
Cheapest Retailer
-
$3,008 USD
HK$23,500 HKD
A
Retailer 2
-
$3,059 USD
View
A
Retailer 3
-
$3,220 USD
View
A
Retailer 4
-
$3,290 USD
View
A
Retailer 5
-
$3,343 USD
View
Final sale: no returns
A
Retailer 6
-
$3,602 USD
A$5,542 AUD
View
A
Retailer 7
-
$3,680 USD
View
A
Retailer 8
-
$3,816 USD
£3,004 GBP
View
A
Retailer 9
-
$4,510 USD
A$6,938 AUD
View
B+
Retailer 10
-
$5,200 USD
View
Retailer 11
-
$6,372 USD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$6,687 USD
£5,265 GBP
View
Most Expensive
NZ Jewellers
dbcde0c6-ecd5-4e53-b75b-bbe4c5d8e081 · Sep 25
$7,360 USD
View
Price last confirmed 37 days ago
12 more retailers have this diamond
Prices start from $3,008 USDSave up to $3,679 USD

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
$3,008 USD