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Oval|Natural|GIA

1.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 2166672066

Certificate GIA 2166672066

Diamond specifications and retailer prices

From HK$88,813 HKD
$11,320 USD
As of October 28, 2026
Save HK$68,678 HKD (44%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$157,492 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2166672066. Listed at 19 retailers as of October 28, 2026, with prices from HK$88,813 to HK$157,492, a HK$68,678 spread on the same certified stone. MOH London lists it at HK$157,492. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2166672066
Dimensions8.71 × 6.71 × 4.08 mm
L/W Ratio1.30
Top View
8.71 mm6.71 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 2166672066
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 60.9%

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: Oct 28
Current: HK$157,492 HKD|Low: HK$88,813 HKD|High: HK$159,385 HKD|Avg: HK$121,179 HKD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6HK$88,813 HKD
Retailer 7HK$107,565 HKD
Retailer 3HK$107,641 HKD
Retailer 5HK$108,274 HKD
Retailer 10HK$109,244 HKD
Retailer 9HK$113,449 HKD
Retailer 2HK$121,716 HKD
Retailer 8HK$142,862 HKD
Retailer 4HK$148,152 HKD
MOH LondonHK$157,492 HKD

44 data points across 10 retailers

19 retailersHK$88,813 HKD to HK$157,492 HKD

B+
Cheapest Retailer
-
HK$88,813 HKD
$11,320 USD
B
Retailer 2
-
HK$93,560 HKD
$11,925 USD
View
B
Retailer 3
-
HK$93,701 HKD
$11,943 USD
View
B
Retailer 4
-
HK$94,253 HKD
CA$16,685 CAD
View
B
Retailer 5
-
HK$99,170 HKD
$12,640 USD
View
B
Retailer 6
-
HK$100,841 HKD
$12,853 USD
View
B
Retailer 7
-
HK$107,565 HKD
$13,710 USD
View
B
Retailer 8
-
HK$107,641 HKD
£10,803 GBP
View
Retailer 9
-
HK$108,274 HKD
A$21,231 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
HK$109,244 HKD
$13,924 USD
View
B
Retailer 11
-
HK$113,449 HKD
$14,460 USD
View
B
Retailer 12
-
HK$115,646 HKD
$14,740 USD
View
B
Retailer 13
-
HK$115,646 HKD
$14,740 USD
View
B
Retailer 14
-
HK$116,877 HKD
$14,897 USD
View
B
Retailer 15
-
HK$119,490 HKD
$15,230 USD
View
B
Retailer 16
-
HK$121,716 HKD
€14,775 EUR
View
B
Retailer 17
-
HK$142,862 HKD
$18,209 USD
View
B
Retailer 18
-
HK$148,152 HKD
ZAR 305,059 ZAR
View
Most Expensive
B
MOH London
8A6CB078A · Nov 1
HK$157,492 HKD
£15,806 GBP
View
18 more retailers have this diamond
Prices start from HK$88,813 HKDSave up to HK$68,678 HKD

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 Oval
HK$88,813 HKD