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Round|Natural|GIA

1.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2245018446

Certificate GIA 2245018446

Diamond specifications and retailer prices

From $5,936 NZD
SGD 4,521 SGD
As of October 31, 2026
Save $4,782 NZD (45%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,718 NZD at Wholesale Diamonds Direct · As of October 26, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2245018446. Listed at 9 retailers as of October 26, 2026, with prices from $5,936 to $10,718, a $4,782 spread on the same certified stone. Wholesale Diamonds Direct lists it at $10,718. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2245018446
Dimensions7.27 × 4.58 × 4.58 mm
L/W Ratio1.59
Culet sizeNone
Top View
7.27 mm4.58 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245018446
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 41.2°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $7,758 NZD|Low: $5,936 NZD|High: $11,454 NZD|Avg: $7,722 NZD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
November 1, 2026
Retailer 5$5,936 NZD
Retailer 3$6,228 NZD
Retailer 7$6,363 NZD
Retailer 2$6,750 NZD
Retailer 6$7,521 NZD
Retailer 1$7,758 NZD
Retailer 4$7,921 NZD
Wholesale Diamonds Direct$10,718 NZD

44 data points across 8 retailers

9 retailers$5,936 NZD to $10,718 NZD

A
Cheapest Retailer
-
$5,936 NZD
SGD 4,521 SGD
A
Retailer 2
-
$6,228 NZD
$3,510 USD
View
A
Retailer 3
-
$6,363 NZD
SGD 4,846 SGD
View
A
Retailer 4
-
$6,750 NZD
£2,996 GBP
View
A
Retailer 5
-
$7,521 NZD
$4,239 USD
View
A
Retailer 6
-
$7,758 NZD
€4,164 EUR
View
A
Retailer 7
-
$7,921 NZD
£3,515 GBP
View
B+
Retailer 8
-
$10,101 NZD
$5,693 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
472895024 · Oct 26
$10,718 NZD
$6,041 USD
View
8 more retailers have this diamond
Prices start from $5,936 NZDSave up to $4,782 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
$5,936 NZD