CaratHunter
Plans
Marquise|Natural|GIA

0.80ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 2225918985

Certificate GIA 2225918985

Diamond specifications and retailer prices

From $3,421 AUD
$2,403 USD
As of November 1, 2026
Save $4,735 AUD (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,156 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-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 2225918985. Listed at 14 retailers as of October 30, 2026, with prices from $3,421 to $8,156, a $4,735 spread on the same certified stone. NZ Jewellers lists it at $8,156. 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

0.80
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.71°
Pavilion angle38.14°
OriginNatural
Grading LabGIA
CertificateGIA 2225918985
Dimensions8.97 × 4.88 × 3.02 mm
L/W Ratio1.84
Top View
8.97 mm4.88 mm0.80 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2225918985
Side View
Table 56.0%Crown 38.71°Girdle: ThickPavilion 38.14°Culet: NoneDepth 61.9%

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: $8,156 AUD|Low: $3,220 AUD|High: $8,156 AUD|Avg: $4,434 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
Retailer 16
November 2, 2026
Retailer 14$3,421 AUD
Retailer 5$3,494 AUD
Retailer 11$3,531 AUD
Retailer 6$3,549 AUD
Retailer 16$3,597 AUD
Retailer 12$3,599 AUD
Retailer 3$3,901 AUD
Retailer 4$3,901 AUD
Retailer 7$4,316 AUD
Retailer 13$4,371 AUD
Retailer 15$4,501 AUD
Retailer 2$4,565 AUD
Retailer 8$4,685 AUD
Retailer 10$5,810 AUD
Retailer 9$6,834 AUD
NZ Jewellers$8,156 AUD

33 data points across 16 retailers

14 retailers$3,421 AUD to $8,156 AUD

B+
Cheapest Retailer
-
$3,421 AUD
$2,403 USD
B+
Retailer 2
-
$3,494 AUD
$2,454 USD
View
B+
Retailer 3
-
$3,531 AUD
$2,480 USD
View
B+
Retailer 4
-
$3,597 AUD
$2,526 USD
View
B+
Retailer 5
-
$3,599 AUD
$2,528 USD
View
Final sale: no returns
B+
Retailer 6
-
$3,901 AUD
$2,740 USD
View
B+
Retailer 7
-
$3,901 AUD
$2,740 USD
View
B+
Retailer 8
-
$4,052 AUD
$2,846 USD
View
Retailer 9
-
$4,371 AUD
View
Price last confirmed 25 days ago
B
Retailer 10
-
$4,501 AUD
$3,162 USD
View
B+
Retailer 11
-
$4,565 AUD
€3,054 EUR
View
B
Retailer 12
-
$5,810 AUD
ZAR 65,937 ZAR
View
B
Retailer 13
-
$6,834 AUD
£3,780 GBP
View
Most Expensive
B
NZ Jewellers
329b9ea3-d884-461c-95b4-f24b468a0078 · Oct 30
$8,156 AUD
$5,729 USD
View
13 more retailers have this diamond
Prices start from $3,421 AUDSave up to $4,735 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+
0.80ct Marquise
$3,421 AUD