CaratHunter
Plans
Round|Natural|GIA

1.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 3565648167

Certificate GIA 3565648167

Diamond specifications and retailer prices

From £4,971 GBP
As of November 6, 2026
Save £6,102 GBP (55%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £11,074 GBP at NZ Jewellers · As of November 5, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3565648167. Listed at 23 retailers as of November 5, 2026, with prices from £4,971 to £11,074, a £6,102 spread on the same certified stone. NZ Jewellers lists it at £11,074. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 3565648167
Dimensions7.46 × 7.43 × 4.58 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
7.46 mm7.43 mm1.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565648167
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £11,074 GBP|Low: £4,971 GBP|High: £11,430 GBP|Avg: £6,706 GBP|-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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 6, 2026
Retailer 2£4,971 GBP
Retailer 20£5,122 GBP
Retailer 10£5,158 GBP
Retailer 4£5,297 GBP
Retailer 11£5,722 GBP
Retailer 8£5,853 GBP
Retailer 17£6,033 GBP
Retailer 7£6,081 GBP
Retailer 15£6,177 GBP
Retailer 3£6,291 GBP
Retailer 9£6,328 GBP
Retailer 16£6,439 GBP
Retailer 6£6,621 GBP
Retailer 12£6,630 GBP
Retailer 22£6,722 GBP
Retailer 23£6,765 GBP
Retailer 5£6,806 GBP
Retailer 19£6,828 GBP
Retailer 13£7,297 GBP
Retailer 14£7,639 GBP
Retailer 18£8,077 GBP
Retailer 21£9,202 GBP
NZ Jewellers£11,074 GBP

16 data points across 23 retailers

23 retailers£4,971 GBP to £11,074 GBP

B+
Cheapest Retailer
-
£4,971 GBP
B+
Retailer 2
-
£5,122 GBP
View
B+
Retailer 3
-
£5,158 GBP
View
B+
Retailer 4
-
£5,297 GBP
View
Final sale: no returns
B+
Retailer 5
-
£5,722 GBP
View
B+
Retailer 6
-
£5,853 GBP
View
B+
Retailer 7
-
£6,033 GBP
View
B+
Retailer 8
-
£6,081 GBP
View
Retailer 9
-
£6,177 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£6,291 GBP
View
B+
Retailer 11
-
£6,328 GBP
View
Retailer 12
-
£6,439 GBP
View
Price last confirmed 14 days ago
B+
Retailer 13
-
£6,621 GBP
View
B+
Retailer 14
-
£6,630 GBP
View
B+
Retailer 15
-
£6,722 GBP
View
B+
Retailer 16
-
£6,765 GBP
View
B
Retailer 17
-
£6,806 GBP
View
B+
Retailer 18
-
£6,828 GBP
View
B
Retailer 19
-
£7,297 GBP
View
B
Retailer 20
-
£7,639 GBP
View
B
Retailer 21
-
£8,077 GBP
View
B
Retailer 22
-
£9,202 GBP
View
Most Expensive
B
NZ Jewellers
8b723761-7652-4c38-a8f2-4e039014f914 · Nov 5
£11,074 GBP
$14,822 USD
View
22 more retailers have this diamond
Prices start from £4,971 GBPSave up to £6,102 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.

B+
1.55ct Round
£4,971 GBP