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Round|Natural|GIA

1.55ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5553304658

Certificate GIA 5553304658

Diamond specifications and retailer prices

From $5,284 USD
£4,161 GBP
As of November 3, 2026
Save $4,601 USD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $9,885 USD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553304658. Listed at 8 retailers as of November 2, 2026, with prices from $5,284 to $9,885, a $4,601 spread on the same certified stone. NZ Jewellers lists it at $9,885. 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

1.55
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5553304658
Dimensions7.33 × 7.38 × 4.63 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Cloud, Crystal, Needle
Top View
7.33 mm7.38 mm1.55 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553304658
Side View
Table 58.0%Crown 35°Girdle: STK-STKPavilion 41.4°Culet: NoneDepth 62.9%

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 3
Current: $9,885 USD|Low: $4,815 USD|High: $10,625 USD|Avg: $6,531 USD
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
November 3, 2026
Retailer 13$4,815 USD
Retailer 12$5,216 USD
Retailer 6$5,284 USD
Retailer 11$5,868 USD
Retailer 2$5,910 USD
Retailer 8$5,910 USD
Retailer 4$5,981 USD
Retailer 3$6,110 USD
Retailer 9$6,457 USD
Retailer 10$6,748 USD
Retailer 7$8,796 USD
NZ Jewellers$9,885 USD
Retailer 5$10,625 USD

33 data points across 13 retailers

8 retailers$5,284 USD to $9,885 USD

Retailer 1
-
$4,815 USD
Price last confirmed 15 days ago
A
Retailer 2
-
$5,284 USD
£4,161 GBP
View
B+
Retailer 3
-
$5,910 USD
View
Retailer 4
-
$5,910 USD
View
B+
Retailer 5
-
$6,457 USD
£5,084 GBP
View
B+
Retailer 6
-
$6,748 USD
View
B
Retailer 7
-
$8,796 USD
£6,926 GBP
View
Most Expensive
B
NZ Jewellers
7f78dfab-a828-4522-b23c-bee306c234cf · Nov 2
$9,885 USD
View
7 more retailers have this diamond
Prices start from $5,284 USDSave up to $4,601 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
1.55ct Round
$5,284 USD