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Round|Natural|GIA

1.55ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 3555597052

Certificate GIA 3555597052

Diamond specifications and retailer prices

From $4,287 SGD
HK$26,200 HKD
As of October 31, 2026
Save $5,900 SGD (58%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,188 SGD at NZ Jewellers · As of October 30, 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 3555597052. Listed at 9 retailers as of October 30, 2026, with prices from $4,287 to $10,188, a $5,900 spread on the same certified stone. NZ Jewellers lists it at $10,188. 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
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3555597052
Dimensions7.30 × 7.35 × 4.59 mm
L/W Ratio1.01
Key to symbols
Crystal, Needle
Top View
7.30 mm7.35 mm1.55 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555597052
Side View
Table 59.0%CrownGirdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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: Oct 31
Current: $10,188 SGD|Low: $4,255 SGD|High: $11,074 SGD|Avg: $6,792 SGD|-8.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 3$4,287 SGD
Retailer 2$5,157 SGD
Retailer 8$5,456 SGD
Retailer 5$5,847 SGD
Retailer 7$5,847 SGD
Retailer 9$6,156 SGD
Retailer 4$6,659 SGD
Retailer 6$9,363 SGD
NZ Jewellers$10,188 SGD

36 data points across 9 retailers

9 retailers$4,287 SGD to $10,188 SGD

A
Cheapest Retailer
-
$4,287 SGD
HK$26,200 HKD
A
Retailer 2
-
$5,157 SGD
$4,034 USD
View
A
Retailer 3
-
$5,456 SGD
View
A
Retailer 4
-
$5,847 SGD
$4,574 USD
View
A
Retailer 5
-
$5,847 SGD
$4,574 USD
View
A
Retailer 6
-
$6,156 SGD
A$7,408 AUD
View
A
Retailer 7
-
$6,659 SGD
€4,961 EUR
View
B+
Retailer 8
-
$9,363 SGD
£5,767 GBP
View
Most Expensive
B+
NZ Jewellers
140a0751-b25e-4aa4-ae07-854da3af5fbc · Oct 30
$10,188 SGD
$7,969 USD
View
8 more retailers have this diamond
Prices start from $4,287 SGDSave up to $5,900 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
1.55ct Round
$4,287 SGD