Round|Natural|GIA

1.54ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7551327856

Certificate GIA 7551327856

Diamond specifications and retailer prices

From $5,275 USD
As of October 26, 2026
Save $4,863 USD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,494 USD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.54ct natural round diamond

This 1.54ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551327856. Listed at 9 retailers as of October 25, 2026, with a 92% 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

1.54
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7551327856
Dimensions7.33 × 7.27 × 4.58 mm
L/W Ratio1.01
Star length45%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
7.33 mm7.27 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551327856
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.8%

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: Oct 26
Current: $11,494 USD|Low: $4,941 USD|High: $11,857 USD|Avg: $7,369 USD|-3.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 26, 2026
Retailer 12$5,275 USD
Retailer 8$5,929 USD
Retailer 7$6,226 USD
Retailer 11$6,226 USD
Retailer 10$6,230 USD
Retailer 3$6,423 USD
Retailer 2$7,077 USD
Retailer 9$7,184 USD
Retailer 5$7,477 USD
Retailer 4$7,851 USD
Retailer 6$10,138 USD
NZ Jewellers$11,494 USD

40 data points across 12 retailers

9 retailers$5,275 USD to $10,138 USD

A
Cheapest Retailer
-
$5,275 USD
Retailer 2
-
$6,226 USD
View
Price last confirmed 9 days ago
Retailer 3
-
$6,226 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$6,230 USD
View
B+
Retailer 5
-
$7,077 USD
£5,572 GBP
View
Retailer 6
-
$7,184 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$7,477 USD
€7,121 EUR
View
B
Retailer 8
-
$10,138 USD
£7,983 GBP
View
Most Expensive
NZ Jewellers
52fd0370-023f-4d40-a416-d453c9749b6d · Oct 20
$11,494 USD
View
Price last confirmed 11 days ago
8 more retailers have this diamond
Prices start from $5,275 USDSave up to $4,863 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 Round
$5,275 USD