Heart|Natural|GIA

0.91ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 3545815733

Certificate GIA 3545815733

Diamond specifications and retailer prices

From $1,024 USD
HK$8,000 HKD
As of October 31, 2026
Save $762 USD (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,405 USD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.91ct natural heart diamond

This 0.91ct natural heart sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545815733. Listed at 15 retailers as of October 31, 2026, with a 74% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.91
Carat
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle42.6°
OriginNatural
Grading LabGIA
CertificateGIA 3545815733
Dimensions5.70 × 6.73 × 4.02 mm
L/W Ratio1.18
Top View
5.70 mm6.73 mm0.91 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545815733
Side View
Table 61.0%CrownGirdle: MED-THKPavilion 42.6°Culet: NoneDepth 59.8%

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: $1,244 USD|Low: $973 USD|High: $2,584 USD|Avg: $1,563 USD|-5.5%
Retailer 1
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
October 31, 2026
Retailer 8$1,024 USD
Retailer 15$1,226 USD
Retailer 1$1,244 USD
Retailer 10$1,294 USD
Retailer 11$1,305 USD
Retailer 9$1,315 USD
Retailer 13$1,350 USD
Retailer 14$1,418 USD
Retailer 2$1,440 USD
Retailer 4$1,511 USD
Retailer 6$1,680 USD
Retailer 7$1,683 USD
Retailer 5$1,886 USD
Retailer 12$2,034 USD
Retailer 3$2,459 USD

33 data points across 15 retailers

15 retailers$1,024 USD to $1,786 USD

A
Cheapest Retailer
-
$1,024 USD
HK$8,000 HKD
A
Retailer 2
-
$1,226 USD
View
Final sale: no returns
A
Retailer 3
-
$1,244 USD
€1,185 EUR
View
A
Retailer 4
-
$1,294 USD
View
A
Retailer 5
-
$1,305 USD
View
A
Retailer 6
-
$1,315 USD
£1,036 GBP
View
A
Retailer 7
-
$1,350 USD
View
Retailer 8
-
$1,418 USD
SGD 1,916 SGD
View
Price last confirmed 8 days ago
Retailer 9
-
$1,680 USD
A$2,585 AUD
View
Price last confirmed 27 days ago
Retailer 10
-
$1,683 USD
£1,325 GBP
View
Price last confirmed 34 days ago
B+
Retailer 11
-
$1,786 USD
A$2,748 AUD
View
Retailer 12
-
$1,886 USD
ZAR 30,468 ZAR
View
Price last confirmed 27 days ago
Retailer 13
-
$2,034 USD
View
Price last confirmed 7 days ago
Retailer 14
-
$2,459 USD
£1,936 GBP
View
Price last confirmed 23 days ago
Most Expensive
NZ Jewellers
6a1ee2cd-6626-4483-a5a8-2cc7488160b0 · Sep 25
$3,405 USD
View
Price last confirmed 36 days ago
14 more retailers have this diamond
Prices start from $1,024 USDSave up to $762 USD

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
0.91ct Heart
$1,024 USD