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Marquise|Natural|GIA

1.51ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 1549750982

Certificate GIA 1549750982

Diamond specifications and retailer prices

From $12,107 AUD
$8,485 USD
As of November 1, 2026
Save $10,090 AUD (45%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $22,197 AUD at NZ Jewellers · As of October 30, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1549750982. Listed at 22 retailers as of October 30, 2026, with prices from $12,107 to $22,197, a $10,090 spread on the same certified stone. NZ Jewellers lists it at $22,197. 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

1.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.86°
Pavilion angle38.04°
OriginNatural
Grading LabGIA
CertificateGIA 1549750982
Dimensions10.98 × 6.00 × 3.64 mm
L/W Ratio1.83
Girdle conditionExtremely Thick
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
10.98 mm6.00 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1549750982
Side View
Table 63.0%Crown 38.86°Girdle: THK-ETKPavilion 38.04°Culet: NoneDepth 60.6%

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 1
Current: $22,197 AUD|Low: $12,107 AUD|High: $22,197 AUD|Avg: $15,986 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 2, 2026
Retailer 10$12,107 AUD
Retailer 6$12,470 AUD
Retailer 4$12,484 AUD
Retailer 5$13,319 AUD
Retailer 14$13,319 AUD
Retailer 7$13,430 AUD
Retailer 13$14,429 AUD
Retailer 9$14,454 AUD
Retailer 3$14,650 AUD
Retailer 2$15,428 AUD
Retailer 15$16,648 AUD
Retailer 8$16,776 AUD
Retailer 12$19,807 AUD
Retailer 11$20,800 AUD
NZ Jewellers$22,197 AUD

35 data points across 15 retailers

22 retailers$12,107 AUD to $22,197 AUD

B+
Cheapest Retailer
-
$12,107 AUD
$8,485 USD
B+
Retailer 2
-
$12,470 AUD
$8,739 USD
View
B+
Retailer 3
-
$12,484 AUD
$8,749 USD
View
B+
Retailer 4
-
$13,319 AUD
$9,334 USD
View
B+
Retailer 5
-
$13,319 AUD
$9,334 USD
View
Final sale: no returns
B+
Retailer 6
-
$13,430 AUD
$9,412 USD
View
B+
Retailer 7
-
$14,202 AUD
$9,953 USD
View
B+
Retailer 8
-
$14,248 AUD
$9,985 USD
View
B+
Retailer 9
-
$14,429 AUD
$10,112 USD
View
B+
Retailer 10
-
$14,454 AUD
£7,976 GBP
View
B+
Retailer 11
-
$14,650 AUD
$10,267 USD
View
B
Retailer 12
-
$15,082 AUD
$10,570 USD
View
B
Retailer 13
-
$15,082 AUD
$10,570 USD
View
B+
Retailer 14
-
$15,428 AUD
£8,514 GBP
View
B
Retailer 15
-
$15,582 AUD
$10,920 USD
View
B
Retailer 16
-
$16,648 AUD
$11,667 USD
View
Retailer 17
-
$16,648 AUD
$11,667 USD
View
Price last confirmed 12 days ago
B+
Retailer 18
-
$16,776 AUD
€11,197 EUR
View
Retailer 19
-
$17,528 AUD
$12,284 USD
View
Price last confirmed 18 days ago
B
Retailer 20
-
$19,807 AUD
£10,930 GBP
View
B
Retailer 21
-
$20,800 AUD
£11,478 GBP
View
Most Expensive
B
NZ Jewellers
116673ab-6131-4634-8d9b-3ee3961d970b · Oct 30
$22,197 AUD
$15,556 USD
View
21 more retailers have this diamond
Prices start from $12,107 AUDSave up to $10,090 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
$12,107 AUD