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Princess|Natural|GIA

1.21ct E SI1 Princess Natural Diamond

EX • E/SI1 • GIA 5241037151

Certificate GIA 5241037151

Diamond specifications and retailer prices

From $2,332 AUD
HK$12,800 HKD
As of October 27, 2026
Save $3,298 AUD (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,708 AUD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 1.21ct natural princess diamond

This 1.21ct natural princess sits in the classic 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 5241037151. Listed at 11 retailers as of October 26, 2026, with a 141% 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

1.21
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle55.65°
OriginNatural
Grading LabGIA
CertificateGIA 5241037151
Dimensions5.99 × 5.98 × 4.33 mm
L/W Ratio1.00
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
5.99 mm5.98 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5241037151
Side View
Table 76.0%CrownGirdle: Slightly ThickPavilion 55.65°Culet: NoneDepth 72.4%

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 27
Current: $2,910 AUD|Low: $2,332 AUD|High: $5,690 AUD|Avg: $3,655 AUD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 26, 2026
Retailer 5$2,332 AUD
Retailer 1$2,910 AUD
Retailer 4$2,990 AUD
Retailer 7$3,282 AUD
Retailer 8$3,348 AUD
Retailer 3$4,097 AUD
Retailer 6$4,888 AUD
Retailer 2$5,630 AUD

36 data points across 8 retailers

11 retailers$2,332 AUD to $5,630 AUD

A
Cheapest Retailer
-
$2,332 AUD
HK$12,800 HKD
Retailer 2
-
$2,910 AUD
€1,947 EUR
View
Price last confirmed 4 days ago
A
Retailer 3
-
$2,990 AUD
$2,100 USD
View
A
Retailer 4
-
$3,209 AUD
$2,254 USD
View
A
Retailer 5
-
$3,282 AUD
SGD 3,115 SGD
View
A
Retailer 6
-
$3,348 AUD
View
A
Retailer 7
-
$3,357 AUD
$2,358 USD
View
B+
Retailer 8
-
$4,097 AUD
€2,741 EUR
View
Retailer 9
-
$4,888 AUD
€3,270 EUR
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$5,630 AUD
£3,114 GBP
View
Most Expensive
NZ Jewellers
00bdecad-ab76-4164-9369-abfc656bff54 · Oct 24
$6,708 AUD
$4,712 USD
View
Price last confirmed 7 days ago
10 more retailers have this diamond
Prices start from $2,332 AUDSave up to $3,298 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.

A
1.21ct Princess
$2,332 AUD