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Marquise|Natural|GIA

1.51ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 3535976437

Certificate GIA 3535976437

Diamond specifications and retailer prices

From $14,432 AUD
$10,114 USD
As of November 1, 2026
Save $11,512 AUD (44%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $25,944 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3535976437. Listed at 20 retailers as of November 1, 2026, with prices from $14,432 to $25,944, a $11,512 spread on the same certified stone. NZ Jewellers lists it at $25,944. 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
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.78°
Pavilion angle39.88°
OriginNatural
Grading LabGIA
CertificateGIA 3535976437
Dimensions11.00 × 5.85 × 3.83 mm
L/W Ratio1.88
Top View
11.00 mm5.85 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3535976437
Side View
Table 58.0%Crown 40.78°Girdle: THK-VTKPavilion 39.88°Culet: NoneDepth 65.5%

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: $25,944 AUD|Low: $14,887 AUD|High: $25,944 AUD|Avg: $18,990 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
November 3, 2026
Retailer 11$14,887 AUD
Retailer 3$15,566 AUD
Retailer 2$16,828 AUD
Retailer 10$16,863 AUD
Retailer 8$16,919 AUD
Retailer 9$17,123 AUD
Retailer 12$17,996 AUD
Retailer 5$18,740 AUD
Retailer 4$19,457 AUD
Retailer 7$22,869 AUD
Retailer 6$24,310 AUD
NZ Jewellers$25,944 AUD

45 data points across 12 retailers

20 retailers$14,432 AUD to $25,944 AUD

B+
Cheapest Retailer
-
$14,432 AUD
$10,114 USD
B+
Retailer 2
-
$14,443 AUD
$10,122 USD
View
B+
Retailer 3
-
$14,887 AUD
CA$14,490 CAD
View
B+
Retailer 4
-
$15,368 AUD
$10,770 USD
View
B
Retailer 5
-
$15,566 AUD
$10,909 USD
View
B
Retailer 6
-
$15,696 AUD
$11,000 USD
View
B+
Retailer 7
-
$16,828 AUD
£9,286 GBP
View
B
Retailer 8
-
$16,863 AUD
$11,818 USD
View
Retailer 9
-
$16,919 AUD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$17,123 AUD
$12,000 USD
View
B
Retailer 11
-
$17,996 AUD
$12,612 USD
View
B
Retailer 12
-
$18,164 AUD
$12,730 USD
View
B
Retailer 13
-
$18,164 AUD
$12,730 USD
View
B
Retailer 14
-
$18,740 AUD
€12,508 EUR
View
B
Retailer 15
-
$18,764 AUD
$13,150 USD
View
B
Retailer 16
-
$19,457 AUD
$13,636 USD
View
Retailer 17
-
$20,477 AUD
$14,351 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
$22,869 AUD
ZAR 258,915 ZAR
View
B
Retailer 19
-
$24,310 AUD
£13,415 GBP
View
Most Expensive
B
NZ Jewellers
8137ebd7-bd07-4178-9a85-82c2d98837ad · Nov 3
$25,944 AUD
$18,182 USD
View
19 more retailers have this diamond
Prices start from $14,432 AUDSave up to $11,512 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
$14,432 AUD