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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 $3,346 USD
SGD 4,521 SGD
As of October 29, 2026
Save $2,695 USD (45%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,041 USD 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 $3,346 to $6,041, a $2,695 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,041. 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
Color
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 29
Current: $3,782 USD|Low: $3,346 USD|High: $6,582 USD|Avg: $4,428 USD|-6.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
October 28, 2026
Retailer 5$3,346 USD
Retailer 3$3,510 USD
Retailer 7$3,586 USD
Retailer 1$3,782 USD
Retailer 6$4,239 USD
Retailer 2$4,368 USD
Retailer 4$4,464 USD
Wholesale Diamonds Direct$6,041 USD

43 data points across 8 retailers

9 retailers$3,346 USD to $6,041 USD

A
Cheapest Retailer
-
$3,346 USD
SGD 4,521 SGD
A
Retailer 2
-
$3,510 USD
View
A
Retailer 3
-
$3,586 USD
SGD 4,846 SGD
View
A
Retailer 4
-
$3,782 USD
£2,978 GBP
View
A
Retailer 5
-
$4,239 USD
View
A
Retailer 6
-
$4,368 USD
€4,160 EUR
View
A
Retailer 7
-
$4,464 USD
£3,515 GBP
View
B+
Retailer 8
-
$5,693 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
472895024 · Oct 26
$6,041 USD
View
8 more retailers have this diamond
Prices start from $3,346 USDSave up to $2,695 USD

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
$3,346 USD