Heart|Natural|GIA

1.91ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 2221290303

Certificate GIA 2221290303

Diamond specifications and retailer prices

From $12,679 AUD
$8,906 USD
As of November 1, 2026
Save $12,563 AUD (50%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $25,695 AUD 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: $25,242 AUD|Low: $12,679 AUD|High: $25,695 AUD|Avg: $17,667 AUD|-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 2, 2026
Retailer 5$12,679 AUD
Retailer 18$14,051 AUD
Retailer 15$14,955 AUD
Retailer 4$15,144 AUD
Retailer 17$15,144 AUD
Retailer 9$16,157 AUD
Retailer 2$16,368 AUD
Retailer 6$16,407 AUD
Retailer 13$16,455 AUD
Retailer 14$16,659 AUD
Retailer 3$17,593 AUD
Retailer 8$17,596 AUD
Retailer 16$17,596 AUD
Retailer 10$18,194 AUD
Retailer 7$18,931 AUD
Retailer 12$22,250 AUD
Retailer 11$23,652 AUD
NZ Jewellers$25,242 AUD

44 data points across 18 retailers

21 retailers$12,679 AUD to $25,242 AUD

B+
Cheapest Retailer
-
$12,679 AUD
$8,906 USD
B+
Retailer 2
-
$14,051 AUD
$9,870 USD
View
B+
Retailer 3
-
$14,955 AUD
$10,505 USD
View
B+
Retailer 4
-
$15,144 AUD
$10,638 USD
View
Final sale: no returns
Retailer 5
-
$15,144 AUD
$10,638 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$16,157 AUD
$11,349 USD
View
B+
Retailer 7
-
$16,368 AUD
£9,053 GBP
View
Retailer 8
-
$16,407 AUD
$11,525 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$16,455 AUD
View
Price last confirmed 9 days ago
Retailer 10
-
$16,659 AUD
$11,702 USD
View
Price last confirmed 7 days ago
Retailer 11
-
$16,702 AUD
$11,732 USD
View
Price last confirmed 34 days ago
B
Retailer 12
-
$17,593 AUD
$12,358 USD
View
B
Retailer 13
-
$17,596 AUD
$12,360 USD
View
B
Retailer 14
-
$17,596 AUD
$12,360 USD
View
B
Retailer 15
-
$18,194 AUD
$12,780 USD
View
B
Retailer 16
-
$18,931 AUD
$13,298 USD
View
Retailer 17
-
$19,271 AUD
$13,537 USD
View
Price last confirmed 34 days ago
B
Retailer 18
-
$22,250 AUD
ZAR 252,490 ZAR
View
B
Retailer 19
-
$23,652 AUD
£13,082 GBP
View
B
Retailer 20
-
$25,242 AUD
$17,731 USD
View
Most Expensive
NZ Jewellers
ada9465a-a5a3-4e08-8c69-79629e81a6d5 · Sep 28
$25,695 AUD
$18,049 USD
View
Price last confirmed 35 days ago
20 more retailers have this diamond
Prices start from $12,679 AUDSave up to $12,563 AUD

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
$12,679 AUD