Heart|Natural|GIA

0.21ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 2556181270

Certificate GIA 2556181270

Diamond specifications and retailer prices

From £105 GBP
₹13,393 INR
As of October 31, 2026
Save £170 GBP (62%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £699 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.21ct natural heart diamond

This 0.21ct natural heart sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2556181270. Listed at 8 retailers as of October 31, 2026, with a 162% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.21
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556181270
Dimensions3.48 × 4.15 × 2.52 mm
L/W Ratio1.19
Top View
3.48 mm4.15 mm0.21 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556181270
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 60.7%

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: £699 GBP|Low: £105 GBP|High: £699 GBP|Avg: £246 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 2£105 GBP
Retailer 5£154 GBP
Retailer 4£166 GBP
Retailer 3£172 GBP
Retailer 8£178 GBP
Retailer 6£208 GBP
Retailer 7£275 GBP
NZ Jewellers£699 GBP

42 data points across 8 retailers

8 retailers£105 GBP to £275 GBP

A
Cheapest Retailer
-
£105 GBP
₹13,393 INR
B+
Retailer 2
-
£154 GBP
$207 USD
View
B+
Retailer 3
-
£166 GBP
$223 USD
View
B+
Retailer 4
-
£172 GBP
$231 USD
View
B+
Retailer 5
-
£178 GBP
$239 USD
View
B+
Retailer 6
-
£208 GBP
$279 USD
View
B
Retailer 7
-
£275 GBP
$368 USD
View
Most Expensive
NZ Jewellers
5b448134-c64f-4e6e-9a67-3b8f9cd2b429 · Oct 30
£699 GBP
$937 USD
View
Price under review
7 more retailers have this diamond
Prices start from £105 GBPSave up to £170 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
0.21ct Heart
£105 GBP