Heart|Natural|GIA

1.54ct G SI1 Heart Natural Diamond

EX • G/SI1 • GIA 5231681789

Certificate GIA 5231681789

Diamond specifications and retailer prices

From $4,081 USD
£3,213 GBP
As of November 2, 2026
Save $3,464 USD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,545 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.54ct natural heart diamond

This 1.54ct natural heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231681789. Listed at 8 retailers as of October 30, 2026, with prices from $4,081 to $7,545, a $3,464 spread on the same certified stone. NZ Jewellers lists it at $7,545. 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

1.54
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.71°
Pavilion angle42.28°
OriginNatural
Grading LabGIA
CertificateGIA 5231681789
Dimensions7.15 × 7.96 × 4.82 mm
L/W Ratio1.11
Top View
7.15 mm7.96 mm1.54 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5231681789
Side View
Table 61.0%Crown 36.71°Girdle: STK-THKPavilion 42.28°Culet: NoneDepth 60.6%

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: $7,545 USD|Low: $4,026 USD|High: $7,778 USD|Avg: $5,093 USD|-3.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9$4,026 USD
Retailer 2$4,081 USD
Retailer 6$4,110 USD
Retailer 4$4,331 USD
Retailer 5$4,331 USD
Retailer 7$4,471 USD
Retailer 8$4,762 USD
Retailer 10$4,873 USD
Retailer 3$6,897 USD
NZ Jewellers$7,545 USD

35 data points across 10 retailers

8 retailers$4,081 USD to $7,545 USD

A
Cheapest Retailer
-
$4,081 USD
£3,213 GBP
A
Retailer 2
-
$4,110 USD
View
A
Retailer 3
-
$4,331 USD
View
A
Retailer 4
-
$4,331 USD
View
A
Retailer 5
-
$4,471 USD
View
Retailer 6
-
$4,762 USD
A$7,326 AUD
View
Price last confirmed 23 days ago
B+
Retailer 7
-
$6,897 USD
£5,431 GBP
View
Most Expensive
B+
NZ Jewellers
a507d41b-ac5a-4fee-a244-4b369db3e023 · Oct 30
$7,545 USD
View
7 more retailers have this diamond
Prices start from $4,081 USDSave up to $3,464 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
1.54ct Heart
$4,081 USD