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Round|Natural|GIA

1.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1555694587

Certificate GIA 1555694587

Diamond specifications and retailer prices

From $10,921 NZD
$6,155 USD
As of November 2, 2026
Save $1,269 NZD (10%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,937 NZD at Wholesale Diamonds Direct · As of October 21, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural round diamond

This 1.51ct natural round 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 and certified by GIA 1555694587. Listed at 15 retailers as of November 2, 2026, with a relatively tight 12% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1555694587
Dimensions7.23 × 7.28 × 4.60 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.23 mm7.28 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555694587
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $12,189 NZD|Low: $8,520 NZD|High: $15,673 NZD|Avg: $10,884 NZD
Retailer 1
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
Wholesale Diamonds Direct
October 28, 2026
Retailer 3$8,520 NZD
Retailer 6$8,551 NZD
Retailer 10$8,714 NZD
Retailer 12$8,978 NZD
Retailer 13$9,192 NZD
Retailer 4$10,292 NZD
Retailer 14$10,557 NZD
Retailer 11$10,573 NZD
Retailer 7$11,041 NZD
Retailer 2$11,412 NZD
Retailer 8$11,799 NZD
Retailer 9$11,799 NZD
Retailer 1$12,189 NZD
Retailer 5$14,201 NZD
Wholesale Diamonds Direct$14,937 NZD

37 data points across 15 retailers

15 retailers$10,921 NZD to $12,189 NZD

Retailer 1
-
$8,520 NZD
$4,802 USD
Price last confirmed 11 days ago
Retailer 2
-
$8,551 NZD
SGD 6,513 SGD
View
Price last confirmed 10 days ago
Retailer 3
-
$8,714 NZD
$4,911 USD
View
Price last confirmed 10 days ago
Retailer 4
-
$8,978 NZD
SGD 6,838 SGD
View
Price last confirmed 11 days ago
Retailer 5
-
$9,192 NZD
£4,079 GBP
View
Price last confirmed 11 days ago
Retailer 6
-
$10,292 NZD
$5,800 USD
View
Price last confirmed 11 days ago
Retailer 7
-
$10,557 NZD
£4,685 GBP
View
Price last confirmed 9 days ago
Retailer 8
-
$10,573 NZD
€5,675 EUR
View
Price last confirmed 10 days ago
A
Retailer 9
-
$10,921 NZD
$6,155 USD
View
B+
Retailer 10
-
$11,041 NZD
$6,223 USD
View
B+
Retailer 11
-
$11,799 NZD
$6,650 USD
View
B+
Retailer 12
-
$11,799 NZD
$6,650 USD
View
B+
Retailer 13
-
$12,189 NZD
$6,870 USD
View
Retailer 14
-
$14,201 NZD
$8,004 USD
View
Price last confirmed 11 days ago
Most Expensive
Wholesale Diamonds Direct
502681368 · Oct 21
$14,937 NZD
$8,419 USD
View
Price last confirmed 11 days ago
14 more retailers have this diamond
Prices start from $10,921 NZDSave up to $1,269 NZD

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.

A
1.51ct Round
$10,921 NZD