CaratHunter
Plans
Marquise|Natural|GIA

1.21ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2245015553

Certificate GIA 2245015553

Diamond specifications and retailer prices

From $7,929 AUD
As of November 6, 2026
Save $2,030 AUD (20%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $9,959 AUD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245015553. Listed at 5 retailers as of November 6, 2026, with prices from $7,929 to $9,959, a $2,030 spread on the same certified stone. 77 Diamonds lists it at $9,959. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.12°
Pavilion angle40.34°
OriginNatural
Grading LabGIA
CertificateGIA 2245015553
Dimensions10.18 × 5.50 × 3.61 mm
L/W Ratio1.85
Culet sizeNone
Top View
10.18 mm5.50 mm1.21 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245015553
Side View
Table 56.0%Crown 37.12°Girdle: THN-VTKPavilion 40.34°Culet: NoneDepth 65.6%

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 6
Current: $9,959 AUD|Low: $5,094 AUD|High: $11,340 AUD|Avg: $8,359 AUD|-1.6%
77 Diamonds
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
November 7, 2026
Retailer 4$5,094 AUD
Retailer 10$6,414 AUD
Retailer 13$6,885 AUD
Retailer 11$6,952 AUD
Retailer 14$6,971 AUD
Retailer 7$8,137 AUD
Retailer 3$8,307 AUD
Retailer 5$8,805 AUD
Retailer 8$8,837 AUD
Retailer 2$8,900 AUD
77 Diamonds$9,959 AUD
Retailer 6$10,134 AUD
Retailer 9$10,530 AUD
Retailer 12$11,340 AUD

28 data points across 14 retailers

5 retailers$7,929 AUD to $9,959 AUD

B+
Cheapest Retailer
-
$7,929 AUD
B
Retailer 2
-
$8,137 AUD
View
B
Retailer 3
-
$8,332 AUD
View
B
Retailer 4
-
$8,900 AUD
View
Most Expensive
B
77 Diamonds
MQMBWCHSV5WM · Nov 7
$9,959 AUD
£5,388 GBP
View
4 more retailers have this diamond
Prices start from $7,929 AUDSave up to $2,030 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+
1.21ct Marquise
$7,929 AUD