CaratHunter
Plans
Heart|Natural|GIA

1.31ct G SI2 Heart Natural Diamond

GD • G/SI2 • GIA 1549946142

Certificate GIA 1549946142

Diamond specifications and retailer prices

From £2,100 GBP
$2,814 USD
As of November 1, 2026
Save £2,417 GBP (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £4,662 GBP at NZ Jewellers · As of October 9, 2026
View at NZ Jewellers

About this 1.31ct natural heart diamond

This 1.31ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1549946142. Listed at 11 retailers as of November 1, 2026, with a 115% 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

1.31
Carat
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1549946142
Dimensions7.65 × 6.43 × 4.52 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Needle
Top View
7.65 mm6.43 mm1.31 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549946142
Side View
Table 64.0%CrownGirdle: ThickPavilionCulet: NoneDepth 59.0%

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 1
Current: £4,662 GBP|Low: £1,929 GBP|High: £4,662 GBP|Avg: £2,825 GBP
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
November 1, 2026
Retailer 15£1,929 GBP
Retailer 14£2,100 GBP
Retailer 3£2,424 GBP
Retailer 8£2,447 GBP
Retailer 2£2,538 GBP
Retailer 7£2,597 GBP
Retailer 13£2,628 GBP
Retailer 9£2,671 GBP
Retailer 5£2,776 GBP
Retailer 6£2,776 GBP
Retailer 12£2,824 GBP
Retailer 4£2,866 GBP
Retailer 11£3,163 GBP
Retailer 10£4,517 GBP
NZ Jewellers£4,662 GBP

13 data points across 15 retailers

11 retailers£2,100 GBP to £4,517 GBP

Retailer 1
-
£1,929 GBP
$2,584 USD
Price last confirmed 18 days ago
B+
Retailer 2
-
£2,100 GBP
$2,814 USD
View
B+
Retailer 3
-
£2,447 GBP
$3,279 USD
View
B+
Retailer 4
-
£2,538 GBP
$3,400 USD
View
B+
Retailer 5
-
£2,628 GBP
$3,521 USD
View
B+
Retailer 6
-
£2,671 GBP
View
B+
Retailer 7
-
£2,776 GBP
$3,720 USD
View
B+
Retailer 8
-
£2,824 GBP
$3,784 USD
View
B
Retailer 9
-
£3,163 GBP
€4,036 EUR
View
B
Retailer 10
-
£4,517 GBP
View
Most Expensive
NZ Jewellers
bf49897a-c7dd-44ab-9d5e-78c9aa20cc0a · Oct 9
£4,662 GBP
$6,246 USD
View
Price last confirmed 23 days ago
10 more retailers have this diamond
Prices start from £2,100 GBPSave up to £2,417 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+
1.31ct Heart
£2,100 GBP