Heart|Natural|GIA

1.91ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 2221290303

Certificate GIA 2221290303

Diamond specifications and retailer prices

From £6,647 GBP
$8,906 USD
As of November 1, 2026
Save £6,586 GBP (50%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £13,471 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.91ct natural heart diamond

This 1.91ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2221290303. Listed at 21 retailers as of October 27, 2026, with a 99% 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

1.91
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle45°
OriginNatural
Grading LabGIA
CertificateGIA 2221290303
Dimensions8.58 × 7.21 × 4.43 mm
L/W Ratio1.19
Key to symbols
Crystal, Feather, Needle
Top View
8.58 mm7.21 mm1.91 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2221290303
Side View
Table 57.0%Crown 38.9°Girdle: STK-VTKPavilion 45°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 1
Current: £13,233 GBP|Low: £6,647 GBP|High: £13,471 GBP|Avg: £9,258 GBP|-1.8%
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
November 1, 2026
Retailer 5£6,647 GBP
Retailer 18£7,366 GBP
Retailer 15£7,840 GBP
Retailer 4£7,939 GBP
Retailer 17£7,939 GBP
Retailer 9£8,470 GBP
Retailer 11£8,581 GBP
Retailer 6£8,601 GBP
Retailer 13£8,627 GBP
Retailer 14£8,734 GBP
Retailer 3£9,223 GBP
Retailer 8£9,225 GBP
Retailer 16£9,225 GBP
Retailer 10£9,538 GBP
Retailer 7£9,925 GBP
Retailer 12£11,664 GBP
Retailer 2£12,400 GBP
NZ Jewellers£13,233 GBP

44 data points across 18 retailers

21 retailers£6,647 GBP to £13,233 GBP

B+
Cheapest Retailer
-
£6,647 GBP
$8,906 USD
B+
Retailer 2
-
£7,366 GBP
$9,870 USD
View
B+
Retailer 3
-
£7,840 GBP
$10,505 USD
View
B+
Retailer 4
-
£7,939 GBP
$10,638 USD
View
Final sale: no returns
Retailer 5
-
£7,939 GBP
$10,638 USD
View
Price last confirmed 7 days ago
B
Retailer 6
-
£8,470 GBP
$11,349 USD
View
B+
Retailer 7
-
£8,581 GBP
View
B
Retailer 8
-
£8,601 GBP
$11,525 USD
View
Retailer 9
-
£8,627 GBP
A$17,783 AUD
View
Price last confirmed 8 days ago
Retailer 10
-
£8,734 GBP
$11,702 USD
View
Price last confirmed 7 days ago
Retailer 11
-
£8,756 GBP
$11,732 USD
View
Price last confirmed 33 days ago
B
Retailer 12
-
£9,223 GBP
$12,358 USD
View
B
Retailer 13
-
£9,225 GBP
$12,360 USD
View
B
Retailer 14
-
£9,225 GBP
$12,360 USD
View
B
Retailer 15
-
£9,538 GBP
$12,780 USD
View
B
Retailer 16
-
£9,925 GBP
$13,298 USD
View
Retailer 17
-
£10,103 GBP
$13,537 USD
View
Price last confirmed 33 days ago
B
Retailer 18
-
£11,664 GBP
ZAR 252,490 ZAR
View
B
Retailer 19
-
£12,400 GBP
View
B
Retailer 20
-
£13,233 GBP
$17,731 USD
View
Most Expensive
NZ Jewellers
ada9465a-a5a3-4e08-8c69-79629e81a6d5 · Sep 28
£13,471 GBP
$18,049 USD
View
Price last confirmed 34 days ago
20 more retailers have this diamond
Prices start from £6,647 GBPSave up to £6,586 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+
1.91ct Heart
£6,647 GBP