CaratHunter
Plans
Round|Natural|GIA

1.51ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 2556718809

Certificate GIA 2556718809

Diamond specifications and retailer prices

From $5,325 USD
HK$41,600 HKD
As of October 29, 2026
Save $5,171 USD (49%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $10,496 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556718809. Listed at 10 retailers as of October 26, 2026, with prices from $5,325 to $10,496, a $5,171 spread on the same certified stone. Wholesale Diamonds Direct lists it at $10,496. 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
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556718809
Dimensions7.29 × 7.33 × 4.58 mm
L/W Ratio1.01
Top View
7.29 mm7.33 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556718809
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.6%

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: $5,501 USD|Low: $5,325 USD|High: $10,850 USD|Avg: $6,714 USD|-3.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Wholesale Diamonds Direct
October 29, 2026
Retailer 6$5,325 USD
Retailer 1$5,501 USD
Retailer 8$5,775 USD
Retailer 5$6,167 USD
Retailer 9$6,201 USD
Retailer 4$6,358 USD
Retailer 7$6,412 USD
Retailer 3$7,453 USD
Retailer 2$7,470 USD
Wholesale Diamonds Direct$10,496 USD

29 data points across 10 retailers

10 retailers$5,325 USD to $10,496 USD

A
Cheapest Retailer
-
$5,325 USD
HK$41,600 HKD
A
Retailer 2
-
$5,501 USD
₹523,951 INR
View
A
Retailer 3
-
$5,775 USD
View
Final sale: no returns
A
Retailer 4
-
$6,167 USD
SGD 8,334 SGD
View
A
Retailer 5
-
$6,201 USD
SGD 8,380 SGD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$6,358 USD
View
A
Retailer 7
-
$6,412 USD
View
A
Retailer 8
-
$7,453 USD
£5,868 GBP
View
A
Retailer 9
-
$7,470 USD
€7,114 EUR
View
Most Expensive
B
Wholesale Diamonds Direct
436402900 · Oct 26
$10,496 USD
View
9 more retailers have this diamond
Prices start from $5,325 USDSave up to $5,171 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
$5,325 USD