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Marquise|Natural|GIA

1.51ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 7556370906

Certificate GIA 7556370906

Diamond specifications and retailer prices

From $12,497 AUD
$8,758 USD
As of November 1, 2026
Save $9,749 AUD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $22,245 AUD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7556370906. Listed at 12 retailers as of November 1, 2026, with prices from $12,497 to $22,245, a $9,749 spread on the same certified stone. NZ Jewellers lists it at $22,245. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556370906
Dimensions10.92 × 5.90 × 3.86 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather
Top View
10.92 mm5.90 mm1.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556370906
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 65.4%

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 1
Current: $14,608 AUD|Low: $12,336 AUD|High: $21,097 AUD|Avg: $15,994 AUD|-0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 5$12,336 AUD
Retailer 8$12,497 AUD
Retailer 7$13,459 AUD
Retailer 1$14,608 AUD
Retailer 9$16,743 AUD
Retailer 2$16,815 AUD
Retailer 4$17,565 AUD
Retailer 6$19,027 AUD
Retailer 3$20,845 AUD

43 data points across 9 retailers

12 retailers$12,497 AUD to $22,245 AUD

B
Cheapest Retailer
-
$12,497 AUD
$8,758 USD
B
Retailer 2
-
$13,347 AUD
$9,354 USD
View
B
Retailer 3
-
$13,459 AUD
$9,432 USD
View
B
Retailer 4
-
$14,460 AUD
$10,134 USD
View
B
Retailer 5
-
$14,608 AUD
£8,061 GBP
View
B
Retailer 6
-
$14,683 AUD
$10,290 USD
View
B
Retailer 7
-
$15,809 AUD
$11,079 USD
View
B
Retailer 8
-
$16,685 AUD
$11,693 USD
View
B
Retailer 9
-
$16,743 AUD
$11,734 USD
View
B
Retailer 10
-
$16,815 AUD
€11,223 EUR
View
B
Retailer 11
-
$20,845 AUD
£11,503 GBP
View
Most Expensive
C
NZ Jewellers
105d20ca-77aa-4802-8629-5635102c1804 · Nov 3
$22,245 AUD
$15,590 USD
View
11 more retailers have this diamond
Prices start from $12,497 AUDSave up to $9,749 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
1.51ct Marquise
$12,497 AUD