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Round|Natural|GIA

1.53ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2556434576

Certificate GIA 2556434576

Diamond specifications and retailer prices

From £3,315 GBP
HK$34,700 HKD
As of October 30, 2026
Save £3,162 GBP (49%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £7,557 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.53ct natural round diamond

This 1.53ct 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 2556434576. Listed at 13 retailers as of October 29, 2026, with a 95% 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

1.53
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556434576
Dimensions7.28 × 7.33 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.28 mm7.33 mm1.53 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556434576
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.6°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: Oct 30
Current: £4,779 GBP|Low: £3,315 GBP|High: £6,873 GBP|Avg: £4,428 GBP|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 10£3,315 GBP
Retailer 11£3,484 GBP
Retailer 6£3,657 GBP
Retailer 7£3,696 GBP
Retailer 9£3,933 GBP
Retailer 2£3,963 GBP
Retailer 4£4,237 GBP
Retailer 3£4,258 GBP
Retailer 1£4,779 GBP
Retailer 5£6,477 GBP
Retailer 8£6,813 GBP

35 data points across 11 retailers

13 retailers£3,315 GBP to £6,477 GBP

A
Cheapest Retailer
-
£3,315 GBP
HK$34,700 HKD
A
Retailer 2
-
£3,484 GBP
$4,668 USD
View
A
Retailer 3
-
£3,657 GBP
$4,900 USD
View
Final sale: no returns
A
Retailer 4
-
£3,696 GBP
$4,952 USD
View
A
Retailer 5
-
£3,867 GBP
A$7,972 AUD
View
A
Retailer 6
-
£3,933 GBP
$5,270 USD
View
A
Retailer 7
-
£3,963 GBP
$5,310 USD
View
B+
Retailer 8
-
£4,237 GBP
View
B+
Retailer 9
-
£4,258 GBP
A$8,778 AUD
View
B+
Retailer 10
-
£4,779 GBP
€6,098 EUR
View
B
Retailer 11
-
£6,477 GBP
View
Retailer 12
-
£6,813 GBP
$9,129 USD
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
9e616bd5-98c0-432e-92b9-f54fb9cc7a36 · Sep 25
£7,557 GBP
$10,126 USD
View
Price last confirmed 35 days ago
12 more retailers have this diamond
Prices start from £3,315 GBPSave up to £3,162 GBP

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
1.53ct Round
£3,315 GBP