CaratHunter
Plans
Marquise|Natural|GIA

1.20ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 1548699300

Certificate GIA 1548699300

Diamond specifications and retailer prices

From $10,278 AUD
As of November 7, 2026
Save $6,586 AUD (39%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $20,348 AUD at NZ Jewellers · As of November 7, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded D 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 1548699300. Listed at 15 retailers as of November 7, 2026, with a 64% 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

1.20
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1548699300
Dimensions11.12 × 5.56 × 3.28 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Needle
Top View
11.12 mm5.56 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1548699300
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.0%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $20,348 AUD|Low: $10,278 AUD|High: $20,348 AUD|Avg: $13,816 AUD
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
November 7, 2026
Retailer 7$10,278 AUD
Retailer 15$10,444 AUD
Retailer 8$10,498 AUD
Retailer 12$10,846 AUD
Retailer 6$11,247 AUD
Retailer 14$11,371 AUD
Retailer 5$11,666 AUD
Retailer 9$11,879 AUD
Retailer 2$11,920 AUD
Retailer 3$12,270 AUD
Retailer 11$12,918 AUD
Retailer 4$14,842 AUD
Retailer 10$15,055 AUD
Retailer 13$16,864 AUD
NZ Jewellers$20,348 AUD

33 data points across 15 retailers

15 retailers$10,278 AUD to $16,864 AUD

B
Cheapest Retailer
-
$10,278 AUD
B
Retailer 2
-
$10,444 AUD
View
B
Retailer 3
-
$10,498 AUD
View
B
Retailer 4
-
$10,846 AUD
View
B
Retailer 5
-
$11,247 AUD
View
B
Retailer 6
-
$11,371 AUD
View
Retailer 7
-
$11,666 AUD
View
Price last confirmed 16 days ago
B
Retailer 8
-
$11,879 AUD
View
B
Retailer 9
-
$11,920 AUD
View
B
Retailer 10
-
$12,270 AUD
View
B
Retailer 11
-
$12,918 AUD
View
B
Retailer 12
-
$14,842 AUD
View
B
Retailer 13
-
$15,055 AUD
View
B
Retailer 14
-
$16,864 AUD
View
Most Expensive
NZ Jewellers
9924db72-0881-4718-bff6-5f14608c14b9 · Nov 7
$20,348 AUD
$13,981 USD
View
Price under review
14 more retailers have this diamond
Prices start from $10,278 AUDSave up to $6,586 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
1.20ct Marquise
$10,278 AUD